I only have GHII, I've beaten and 5 starred easy and medium, beaten hard, 5 starred most of hard, stuck on the last two setlists, almost beaten expert, again stuck on the last two.
Also, because I feel like ranting, I hate people who say to people that play Guitar Hero: "LOL GAYTAR HEERO LOL IS NUTHIN LIEK REEL GUITAR U IS A POSER GO PLAY REEL GUITR NOOBCAEK LOL!!!1!shift!!111one!11".
I probably overdid it, but the point remains.

Looks like I am the best

I can get 5* on all songs in Expert on GH1, GH2, and GH80's. I still have a couple songs to go in 3, but they are all 4 stars.

Same, except Misirlou and some other impossible songs. And did I forget to mention I use Dualshock? Meaning no strumming, just finger-crushing button-mashing.

Yeah, I totally win.

EDIT: Also, 5* on all songs on expert on GH3, up to the last set. First one in the last set is next to impossible to even 3* due to it not being made for a dualshock.

guitar hero is pwn... but if u want a real challenge go out and get a real guitar... so much harder.

i gpt gh gh2 gh3 ^_^ all fun game i beat all on exelent ^_^ just havein trubble on fire in the flames in expert.....lol

I tried Through the Fire And Flames on expert and got 20% in Two Player

I play frets on fire. A guitar hero clone but on the computer and using the keyboard as a guitar.

I play all of them. They totally pwn. my favorite is through the fire and flames.

I actually find guitar Hero to be more difficult than a real guitar. I can play miserlou no problem on a real guitar but I fail every level at guitar hero when I've played it at friends houses.

I play GH2 with hard, and its really fun