and why?

I definitely prefer trigger shifters over grip shift. Trigger shifters are the only shifters I will use on any bike except for my grocery store ride. Whenever you bunny hop or try to do much of anything with grip shift, it shifts. Well at least that's my experience with it on my bikes.

I also prefer the trigger type shifter, although I imagine to a large degree it depends on what you get used to. Why, they just feel right to me, easy to use.

Sram grip shift FTW!

Aside for the horrible push/push shimano shifters on my old '90 Giant mtb, I've been on some version of 9.0 SL/XO grip shifters. For me they work. Pros-lightweight, able to dump several gears in one shift, ability to trim the front derailleur, cockpit/handlebar looks cleaner. Cons-not available in 2x10!

Sram X._ triggers. Because they work and work well. They've rendered twist shifters obsolete.

^--- Why Sram specifically??

Oh, and I've only piddled with grip-shifts a little, and I didn't like the feel.

You don't need to trim with trigger shifters if they are set up correctly, and they don't really add much bulk to the whole brake assembly anyway

Edit: that didn't make much sense. I'm trying to say there is no need to trim lol

trigger..thats all i have ever used so i cant compare the two...

Trigger shifters. Because I would rather push a button than to twist my wrist. That's all the reason I need. I don't overanalyze these things.

I like the crispness of the action and the layout/feel of the paddles. I can set them up to 'bump' the upshift with just a knuckle and keep the downshift paddle rotated up out of the way but still reachable when needed.

all my bikes have trigger shifters.i hate grip shifters even though i know people that like them.

I gots Sram X9 twisters.

Never had issue shifting while log or bunny hoppin',only took a couple rides to get use to. Lighter,cheaper,quick and consistent. Other than personal preference (which is a big thing,granted),nothing a trigger-happy dude can argue with,numbers don't lie

I only run em on the one bike though,and I'm not staddling the fience between triggers and twisters...the others are all SS's

SRAM triggers. Grip shift just feels awkward to me. My first POS Walmart bike had grip shift and I hated it. Years later, I bought a 1x9 DJ with X.9 grip shift. Thought it might be better, but nope, still awkward.

I prefer trigger. My first MTB had grip shifters and I was constantly shifting when I didn't want to. On my current bike though I have SRAM triggers and rarely shift except when I mean to. Also, the triggers just seem more crisp and faster overall.

I agree with your assessment, but only when they are initially set up. Wait a couple months after the derailleur cables stretch and it needs adjustment. You can still trim with grip shifters without fiddling with cable adjustments. Not so with triggers. I like it because I'm lazy like that. lol!

I think the problem folks who say "I was constantly shifting when I didn't want to" (quoting adclark) are experiencing is that they're using the shifter as an extension of the grip to hold onto while riding causing the unexpected shifts. If this is the case, using a standard grip rather than the included grip shift compatible shorter grip could alleviate the problem. I use only the fixed grip to hold onto then move my hands ever so slightly inboard to perform the shift. Just my speculation of the supposed "problem" some have with grip shifters, could be wrong.

FWIW, I do run Sram front triggers on two bikes. A X.9 trigger and an older 9spd Rocket (shimano) trigger pod. They work OK, but not as well as the X.0 (8 & 9 spd) stuff on my other bikes.

Triggers are more popular, I started running X9 and X0 twist because my hands go numb on longer rides and when they do I can shift with grips easier than triggers. At first I didn't like them as well, but now I am used to them, I think I would stay with them even if I didn't have hand issues. I ride with a guy who uses thumb for the back and twist for the front. He likes the ability to make fine adjustments on his front D that the twist allows him to do. MTCW

I think I like that. I'd definitely consider that if i didn't have a 1x9.

i hate when gripshifters get older and the grip starts getting all funny and sticky.

Triggers. I used to have grip shift on my past two bikes. I thought it was fine. Then I upgraded to a Shimano Deore set-up and will never look back. The only benefit I see to grips is being able to power through multiple gears when occasionally needed, but as long as you've ridden a trail a few times and know what's coming up, that situation doesn't really arise much. And I can still get through gears pretty damn quick when needed with my triggers. I haven't had a problem with not being able to twist through multiple gears, so really even that's only a theoretical benefit.

I would recommend it for anyone with a front derailleur. I actually had that set-up too for a little while. Then I just ditched my front derailleur, changed gear set-up, and went 1X9. Even better.

Haven't ran into that yet,but good point

I have both... SRAM grips on my ~15 year old folding MTB and Avid Juicy & Elixir triggers on my two '09 29er's. At first the triggers took a bit of getting used to. Now I prefer them.