Out of curiosity, what exactly IS Guilty Gear? I heard all about it growing up, but no one I knew ever played it so I don't actually know what kind of game it is.
Guilty Gear is quite possibly the best fighting game ever made imo. The characters are very quirky; they have some that are standard SF/Marvel style characters, but then they have really interesting ones that rely on playstyles that require a bit more thought. Zappa, for example is a character possessed by a ghost and he can summon either a hellhound, a group of ghosts, a ghostly sword, or a demon to help him. Eddie is a character with a parasite attached to him and when you press a button down, it causes Zato (the host) to attack, but when you release the button, it controls Eddie, the parasite. But then there are also characters like Sol Badguy and Ky Kiske who are sword-wielding shoto-style characters that are fairly easy to wrap your mind around (who have more moves than Ken or Ryu, but are kind of the Ken & ryu of the game.)
The game is very anime styled, and I don't normally like much anime, but the characters and locales are all so well done. Some of the characters are just plain weird (Zappa and Faust for instance) but they're all well created.
Arc Systems is also really good at making fighting games. They're so deliberate in changing things, carefully considering what exactly they're doing, so none of their games are ever a mess balance-wise. Some of are more balanced than others, but they're all pretty well balanced within reason. Guilty Gear XX Accent Core is the latest of the GG games and is extremely well balanced. Even the low tier characters can be extremely powerful in the right hands.
I'm terrible at the game, but as a fan of fighting games, I can't really think of a better created series than Guilty Gear. Arc Sys did so many things right over the course of the series and it's just so much fun to play! I can't recommend it highly enough! I'm really excited to see that there's going to be another game!