Well I can't speak for everyone else, but I've been loving New Vegas and consider it to be the best RPG I've played in years. No, it's not perfect, but as far as 2010 goes it's the best RPG I've played, and yes I've played Mass Effect 2.
With or without a patch it has gone into my top ten lifetime best award group no matter what awards it does or does not get elsewhere. It's not the only buggy game in that list btw, I put Vampire: The Masquerade - Bloodlines right up there as well and it was one of the most bugged/glitchy games I believe I have ever taken the time to play because it was just that awesome. Bloodlines was awesome despite never having patches needed released due to Activision's only giving Troika a week to patch the game. A few of the Troika employees worked without pay to finish some patching and the game community did the rest. Despite all of this, it was an awesome game.
Bloodlines was absolutely amazing, and I'm not really into the whole Vampire scene. The main quest was a bit linear and the combat system somewhat clunky, but the atmosphere, writing, voice acting and quest design was as close to perfect as I think an RPG can get. I was able to look past the bugs and glitches (I still remember the horrible stuttering on account of that memory leak) because the game's content was exceptional.
I can easily see New Vegas becoming the next Bloodlines (only New Vegas is popular enough not to become a cult classic). Technical glitches and bugs galore, but filled with so much exceptional content that at the end of the day it was still an amazing product. The writing, the quest design, Obsidian clearly put a lot of effort into New Vegas' content. Some folks can call NV an "expansion" or "overpriced DLC", or a "disaster" all they want, but I've been having a great time with the game and will continue to do so in face of the few bugs I've actually stumbled across. I definitely consider New Vegas the RPG of 2010 most worthy of RPG of the Year.