Resistance 2 made a massive jump, in terms of quality, from R1. R3, astonishingly, made almost as massive of a jump from R2 and came close to perfection in terms of singleplayer FPS campaign. Shame that the characters feel like an afterthought, but considering how intelligent the game and level design is, it's easy to let that one slide.
Pros: One of the best level designs to grace an FPS, terrific game design, fantastic and diverse weaponry that packs a punch, awesome environmental design, superb graphics, really fun to play
Cons: Characters (writing and VA included) are a huge letdown, sound lags occasionally, could have used more non-shooting segments and environmental storytelling, disappointing radio guy, AI and music aren't that hot