TL;DR post ahead!!!
Y'know, I always come to series very late in their life times. Devil May Cry and Metal Gear being two of them. Coincidentally, I started with the third game of both franchises; Dante's Awakening (rented)/Special Edition (owned) and Snake Eater. It probably has to do with my young age.
Because of that, I never hated any of the characters. I was never there for the Devil May Cry 2 let down and the Metal Gear Solid 2 outrage (hey, another coincidence, both two's). I do understand the backlash though. Raiden replaced Solid Snake as the lead role and Solid Snake had about an hour's worth of gameplay. Devil May Cry 2 . . . yeah, boring game that introduced Rainstorm, wall-running, on-the-fly weapon switching, and Bloody Palace. Otherwise, really boring gameplay.
They were both my entrances into those types of games; poor choice on that with DMC3: DA. I didn't understand DMC's gameplay nor MGS's; I couldn't figure out how to use iron sights until a while later. Yes, I 'm that stupid. But I loved them anyway. DmC: Devil May Cry was very interesting when it was teased. I was surprised. I didn't hate it, just wondered what NT and Capcom were going to do. That is what made me start to look into DMC's combat more and become a better player in hack n' slash games. Thank you raging fanboys.
For Metal Gear Rising. I think it mostly had to do with what happened in MGS4: Raiden's fight scenes. Those were amazing and people wanted a game like that. They wanted to play as a cyborg ninja. Hideo Kojima knew that and his team tried working on it, but it was canceled for various reasons. Then they found Platinum Games to help. A bunch of things had to be changed and now we have Metal Gear Rising: Revengeance. The appeal was cyborg ninja combat. The quality of the gameplay I can't say since I have never played it, but it looks okay and confusing. I don't know how the combos link together. All I know is that it has a heavy/light combo system, sombreros, cardboard boxes, the Zandatsu system, and Raiden, plus a parrying system I think people say is sort of weird to use. Also, Metal Gears . . . sort of . . . IRVINGs (Gekkos) are technically not Metal Gears because of the nuclear power requirement, but RAY did not have it either.
So what's so good about Revengeance? I have no idea. I would have to play it to say.
To Chancey289 (I don't know how to quote in these forums): I agree, Bayonetta is very, very, very, sexualized. Some of the things she does are really unneeded and unnecessary, like saving Luka in a very suggestive manner. Really? That being said, the combat system is enjoyable. But the lack of a moveset annoys me, you can't look it up from what I'm aware unless you're in the loading screen/practice mode. So it just ends up button mashing and attempting to link combos together. It's fun though, but the innuendos are way too much. DMC is over the top and so are other games, but Bayonetta is way too over the top.
Vanquish was really unique in that while being a TPS, it tried to be fast paced. Most TPS's are slow, from what I played that is. Because of how TPS's are played, it kind of made it awkward, but a fresh attempt at this genre. Platinum Games' games are fun, but there are flaws and conflicting tastes that make their games not bad, but not great. Also, QTEs, can go to hell. I hate them. Vanquish's were bareable, so were God War III's, but Bayonetta's are annoying I have no idea what I'm doing wrong. And I just remembered Castlevania: Lord of Shadows has them too. Great I bought two games with QTEs, that'll be fun to screw them up.