I own every console this generation so I'll give you my thoughts on all of them...

Wii: I've had quite alot of fun with it & I hate "casual" party games. It really seems that all of the good "hardcore" games have came from Nintendo (I thought Twilight Princess, Mario Galaxy & Metroid Prime 3 were the best of there series) so you really shouldn't expect much on the RPG front although I have a feeling that sooner or later there will be a good FPS or two. Personally I'm looking forward to No More Heroes, Super Smash Bros. Brawl & Tales of Symphonia 2 (there's 1 RPG for ya) which is well over enough games from one system for me. Also Resident Evil 4 was remade for Wii (best version imo) & Okami (I expect Okami to look even better & the drawing mechanic will probably work great with the wii) is coming out for it later. So if you missed these 2 games (which are some of the best games in the history of video games) the 1st time around you have a 2nd chance.

PS3: Y'know I loved my PS1 & PS2 (in fact I still have RPGs to play from both of them) & it was that love that led to me buying a PS3 but to tell you the truth I'm not that happy with it. I mean sure we can expect more exclusive games in the future Final Fastasy XIII, LittleBigPlanet, MGS4, White Knight Story, Star Ocean 4 (I'm not sure if this will be exclusive or for the PS3 for that matter), the eventual God of War 3 but if you're a now type of guy then right now PS3's library sucks.

XBox360: I've loved my XBox360 ever since I first got it & the awesome Dead Rising. There's countless great games on it (especially if you like FPS & action games) & I've got a strong feeling that this & the DS are gonna be the eastern RPG systems this generation. Blue Dragon (good imo), Eternal Sonata (it was ok but could have been better) & Enchanted Arms (I hated it but some people like it) are already out on the system & then there's Lost Odyessy (which looks like it's gonna be great) & Infinite Undiscovery (stupid name but looks interesting) coming next year. Not only that if you like western RPGs then Xbox360 certainly has you covered with Oblivion (I'm addicted to this game) & Mass Effect not to mention Fallout 3 & Too Human coming next year. To tell you the truth I bought a XBox 360 at first simply because I heard Panzer Dragoon Orta was finally playable on it (I love railshooters like Star Fox & Panzer Dragoon) & I figured I might as well get the new system to play it instead of the old one which had very few games other than PDO that I cared about. I'm glad it turned out to be a great console (because if not that would have been a very stupid move on my part).

DS: You didn't mention this so I won't say much about it but imo the DS is way better than the PSP as far as games go. I mean when it first came out & everybody was trying to make their games completely touch screen I thought it was gonna turn out a piece of shit but now that it has a near limitless amount of great games in almost every genre out & coming soon I think it's the strongest system this generation.

PSP: Has some pretty great RPGs & alot of great remakes of games you may have missed the first go round. Brave Story is pretty awesome as well as Valkeryie Profile Lenneth & Jeanne D'Arc. Tales of the World: Radient Mythology could have been better but if you like Tales games it's ok. I wouldn't recommend Final Fantasy Tactics: War of the Lions if you have any way at all of finding & playing the original. The new cutscenes & translation just aren't worth it with all the damn slowdown that happens when you use highly graphical skills. If you can read Japanese then there's also some great games on that front (I have both Princess Crown & Crisis Core: Final Fantasy VII which are pretty good. I think CC is coming out in english though). But to tell you the truth even with all this I mainly use it for emulation on the go & my PSP has been all but overshadowed by my DS.