I've been a fan of Bon Jovi for about 2 years now.. But i've also been a STRONG fan with Dream Theater.

Dream Theater is a Progressive Rock (or Progressive Metal) band; The same genre as "System of a Down". However, DT isn't at all like SOAD. Progressive Rock is rock that has stages of high parts, and low parts. Dream Theater have lots of styles of music they play, playing lots of styles all in one song (alas, Progressive music). They have some VERY nice music; Kinda just touching the border of metal, but not going into it. Their best song was probably "The Glass Prison", which went for about 14 minutes. People say it had probably the best guitar playing ever.. the media didn't, but people who listen to the song do.

John Petrucci is the guitarist for DreamTheater, and i can easily say he's better than Van Halen, Hendrix, Page, Clapton, and Sambora (in fact everyone, i've never heard any better guitarist). The DT Concert-DVD "Live in Budokan" is so brilliant, especially their performance of "Finally Free"; In which they have a "solo fight" against the guitarist, drummer, and keyboardist, who may i say, are all brilliant players.

I really recommend you all to listen to a few of their songs.. These are a few good songs:
The Glass Prison
As I Am
Honor Thy Father
"Lost Without You" (live instrumental)

Their best albums would be "Train of Thought", "Octavurium", and "Six Degrees of Innur Turbulence". I really encourage you guys to check out this band, because they're close to as-good-as-BJ.

Thanks
-Rhys