Aren't all the resistance games rendered at the same resolution?
R1 and R2 have the same resolution. R3 is lower.
But really, you should play the game instead of looking at the numbers. Visiting R3 locations feels more immersive because of the carefully crafted atmosphere.
It's not the greatest looking game but the weapons are fun. That's it !
Combat visual is more "dynamic" because of more cinematic destruction and assorted weapon effects. e.g., In MP, Cryogun freezes your opponents on-the-fly. If you get sprayed by one, you'll see ice forming around the environment and you. Atomizer secondary fire will launch a pod that pulls people in like a mini-blackhole and distorts the space visually (Great for CTF !).
Also, I don't think there was any point in RFOM that i preferred to R3. For me RFOM was the weakest of the three games. The SP in RFOM bored me to tears to the point that i left it half way through and ignored the game until R2 was just coming out. I had to force myself to go back and finish RFOM so that i didn't miss any of the story, but i hated the story telling in that game and i felt the narrator thing was horrible and made the entire game feel too disconnected.
Yeah, that's why I said RFOM started slow and the gameplay got chopped into small segments. The first few chapters feel like an old WWII shooter game. Once the game hits its stride, I find the arena fight in RFOM SP more fun than many modern shooters. However, the real treasure in RFOM is the MP.
R2 was a great game to me and i didn't have too much of a problem with the boss fights, mainly becuase i don't expect much from boss fights in most games these days. Hardly anyone does good boss fight anymore expect maybe in games like GOW3 and SOTC (last gen). R2's only flaws to me were the graphics, but even then i still felt there was a lot there to admire, e.g. i thought R2 had some of the most amazingly detailed character models this gen. I wasn't much into competitve MP so i can't really comment on that for RFOM or R2, however COOP in R2 was in-flippin-credible.
R2's boss fights were criticized because the enemies don't react to your hits at all for the most part. It felt like firing into a wall. R2 SP gameplay was criticized because it was predictable. Before you enter every battle, they would put the ammo of the appropriate weapon by the entrance. It was also not that well tested because if you don't take the "recommended" approach, it may become too easy or too difficult to tackle.
Yes, I love R2 co-op. Very refreshing, but can be improved further.
R3 was the shining star of the bunch, despite the fact that i too would have liked them to have continued with the awesome coop mode. Overall though i was happier that the SP was so satisfying, and i'm gald they focussed on that as its what i value most. To me R3 and then R2 have the most memorable moments out of the three games. The only thing i remember about RFOM are the times i was furiously frustrated by the games' difficulty with sparsity of health packs and the souless "greyness" of the game.
I rate R3 the best of the three too. IMHO, the ideal package should be:
R3 SP + RFOM MP + R2 co-op