Dead Space was a much better single player game.
You really think so? The combat in Dead Space was so much less satisfying, I thought, and it became both highly predictable (enemies loudly jumping from vents) and repetitive.
I think the difference is that I didn't really play either game for the combat (which RE5 does better). I play them for the adventure. Exploring new locations, uncovering the story, fighting the giant bosses that pop out, etc...
People talk about RE4 and how many times they've played it and stuff, but even though I loved RE4, I played through it...
once and then never touched it again. I popped in RE5 after finishing it and tried playing some mercs and some new game+ and I didn't even make it 30 mins before I was bored and turned it off. The gameplay itself just doesn't do much for me. Once I've seen all the story/levels I have little reason to keep playing.
So in that respect, I enjoyed the DS experience more since I was on the edge of my seating wanting to see what was next (although the end of DS wasn't a very good payoff outside of the graphics). Whereas in RE5 I just did a few chapters a day, and it never really hooked me. Also when you're only playing a game
once, every frustration and annoyance detracts from your overall experience. Sure there were a few annoyances in DS like the Meteor shooting or when I ran out of ammo on the stupid suction cup boss, but that's nothing compared to how many problems I had with the last 1/2 of RE5 because of Sheva's dumb dumb AI or just general bad hinting at wtf you are supposed to be doing. I even had the game get stuck (system wasn't frozen, but game couldn't figure out what to do after qte so it just sat staring at the ground without giving me control back, had to reset) on the final boss which just kind of topped off my experience of annoyances.
I think RE5 solo is one of those games where if you play through it exactly as the developers had in mind in their heads, it's an awesome experience. But if you're not thinking on the same page as the devs and you play differently, you run into constant problems which are frustrating and make your first run a far worse experience. On 2nd play where you know exactly what you are supposed to be doing at all times, I'm sure it plays great and even better with a live human partner, but for me personally, I only play games once so they have one chance to make an impression and that's it.