it's understandable that re5 is dragjae55's first RE. unlike me and Luddite11, we are older gen gamer. we got the opportunity to experience those old wonderful titles back when game devs really put their effort into game designs. not the same case for nowadays milking business model.
But re5 is one of my first ps3 game indeed. As for the single player campion mode. it's a good game for the game play and lvl design varieties it offer. When it comes to online coop, it was a blast to play I have to say.
this is the first game I ever played online, met my first psn buddy at ps Home, we played the vet mode coop together. game become much more fun with a human partner, unforgettable gaming experience have to say. We even challenge the pro mode with hand gun only. although it's mainly for him
I'm trying to use hand gun as much as possible, but in tight situation, I'll pull out my hydra and sniper rifle 
he's a way more skilled gamer than me.RE5's online coop setting just done right. you can invite friend drop-in and drop-out coop, and it's the very first few game on ps3 that have online coop feature and did it just perfect.
I have to say capcom really did a spectacular job to construct the online coop structure.
and many games release years after still don't have the online coop done right. demon souls dark souls especially. WTH is those junky summon feature, it just waste of time for me and my friends
Anyway, talk about the whole RE series, I played the entire series since the RE1 on ps1. Shark attack!
my personal favorite is RE2 and RE veronica, since they both has Claire, that's my girl !
they both have great story and game play too. Although RE5 is best for it's online coop!!!