Originally Posted by
Roopull
...If you're commuting, sealant in your tubes is a must.
Cycle snobs will bash you for using it...
This is pretty grand. Make an absolute statement that flies in the face of most peoples experience, and immediately follow that with an insult directed at anyone with a differing view.
You can try and characterize me as a bike snob for disagreeing, but you'll have a hard time making it stick, as I ride a very Fredly, low-end, old mountain bike that has been converted for city riding and do it in a goofy mix of clothes. Once I switched to tires with good flat protection, I have had almost no problems with flats. One puncture and one slow leak in the past year and half/4500 miles. With that level of rarity for flats, I'd never consider messing around with sealant, much less a "must".
As far as the original question goes, I'm slowly converting our fleet over to Schrader. I have to top off my Airzoundz horn every couple of days and it uses a Schrader valve, so I'd prefer to not be messing around with putting the adapters on and off the tires or messing around with the guts of the pump head of the floor pump I have everyday. I also just prefer Schrader, partially because it seems quicker and easier to not be messing around with unscrewing the valve to air up, or with the retaining nut when changing a tube. With Schrader, you also don't have to worry about ending up with a goofy looking freakishly long valve, had an LBS hand me a couple of these one time and I didn't notice until I went to mount one of them later. I still always put an adapter into my patch kits so that I have one with me, whether it is for myself or someone else. I've only used a gas station pump twice that I can recall in the past three years, but when you need it, you need it. Unfortunately, a lot of times, the gas station pumps fitting at the end of it has been ran over so many times it is hard to get a seal, adapter or no.