Philotomy Jurament
First Post
You might consider Lejendary Adventure.
Also, LA has the concept of "orders" if you want to combine a skill-bundle approach with a strong archetype. Best of both worlds, there.
Having said all that, C&C would probably be a good choice, too. It may not fit #1 as well as LA does, though. Savage Worlds would be another good choice.
LA is a skills-based game, but it takes a broad, skills-bundle approach, rather than a fine-grained approach with lots of tweaking. Also, the PCs (avatars, in LA-speak), start off quite potent (I'd say around 5th or 6th level, in D&D terms), and advance slower, without a whole lot of bit-fiddling with every advancement. This seems to fit what you're looking for.1) Tightly themed PCs whose range of abilities doesn't diversify significantly over the course of the campaign.
Also, LA has the concept of "orders" if you want to combine a skill-bundle approach with a strong archetype. Best of both worlds, there.
I agree with others who've said this is mostly GM-dependent.2) Less death-centric than D&D - I want PCs and NPCs to survive.
LA uses a point-based system for things extraordinary abilities like spells. So you can cast again and again as long you don't run out of points. If the default points are too low, you can always up the available points.3) PCs that have the ability to keep adventuring all day long. Abilities usable as many times as they need, and fairly quick recovery times.
LA fits that, too. There's a small learning curve (mostly getting used to different terminology), but after that, it's smooth sailing. It generally falls on the "rules light" end of the spectrum.4) Fast-paced, straightforward, and exciting combat. No effects that require 5 minutes to resolve.
Having said all that, C&C would probably be a good choice, too. It may not fit #1 as well as LA does, though. Savage Worlds would be another good choice.