These are just THE QUESTIONS. I look to y'all for THE ANSWERS!
3 basic question:
1) What are the key 3-wheel recumbent choices? (name and definition) [Trike, tadpole, ...others...]
2) What are the key decision variables among these choices?
(For 2-wheel bents, I'm familiar with OSS/USS, short/long-wheelbase, 20/26/700 wheels front/rear, and different USS configs [praying mantis/superman], plus the millions of other decisions that apply for "all" bikes (internal hubs, Q-rotors or not, lighting, tires, etc. -- not relevant to this discussion).
3) How does one choose one 3-wheel recumbent (see your answers to question #1) over another? That is to say, are there specific factors that GENERALLY recommend one of the choices over another? (For help with sample factors, see below.)
In case these questions are too broad (I know they are!), my criteria are (in order):
1) fit (I am 5'11" 150#) and comfort (cool, comfortable seat please). [I know this is very subjective, and I will try before I buy, but general advice is appreciated.] FYI: my current 'bent is a Challenge Seiran, which I like because the seat is solid (so I can push against it) but comfortable (it uses a closed-cell foam pad, vents, and a spine-shaped base).
2) stability at high speeds on suboptimal concrete roads (no bouncing side-to-side, pedal/brake steer, or chattering teeth, please)
3) durability and repairability (no weird breakdowns, odd spokes etc.) -- I plan to do 1200k RUSA rides
4) manuevurability in traffic (I will use it to commute to work, just like my old bike)
5) speed (I like to go 20mph for 2-3 hours at a time without killing myself -- my best century is just over 5 hours)
6) weight (I will occasionally need to lift it on/off my car rack -- so 34-36 lbs without gear is about the max)
7) looks (no homemade stuff for me -- I can pay for "cool," but not "awesome" -- translation: no WindCheetah Hypersport, unless it's an incredible deal)
I'm interested in a "safer" bike that I can ride in nastier weather, including sandy, rainsoaked streets. I put knobbies on my 2-wheel 'bent during the winter months, but still didn't get to ride nearly as much as I had hoped, mainly due to the sand factor. This really is a year-round hobby/commute for me, and knobbies just don't do it.
Thanks in advance!