Having recently taken the plunge into First Legion I have been asking myself for weeks if I prefer my K&C Russian Napoleonics or my new First Legion British and French figures. Both have features I prefer over the other.
First Legion:
1. more realistic sculpting
2. more detailed painting
3. more interesting poses
4. more Napoleonic releases
King & Country:
1. better scale IMO (this is a big issue for me)
2. colors are unrealistically bright, but I like that better some reason
3. better feel to them/seems less fragile
4. Brand name
As far as Napoleonics go, I will probably get more First Legion than K&C. However, if First Legion branches out into other areas like WWII, I wouldn't collect them no matter how good they looked. K&C owns WWII. I would make one exception, though. I would collect American Revolution figures from First Legion. K&C's Hessian's were awesome, but their Patriot figures just don't look right to me.