Guitar Pro is paidware. DOWN WITH PAIDWARE!
Power Tab is free. Power tab owns all. I use it for learning (as in what riff fits where) Its useful for stuff, for example, I learnt the Lonely Day (System Of A Down) solo on it, which is totally incomprehensible on the track. I also learnt the Freebird solo on it...darn useful. I even practice my timing in it, as it changes rhythms for the metronome automatically - nice for songs like South Of Heaven, which have double time and stuff
Lemme also add...creating a tab in Powertab is a herculean task (or maybe its just me) U_U
Classical and jazz lover. Fingerstyle, touchstyle, and ERG enthusiast.
Buying a guitar/amp/pedal/processor, and need help? READ THE GUIDE -> http://www.indianguitartabs.com/showthread.php?p=417766#post417766
My Guitar Pro transcriptions (tabs) site for all kinds of music, all genres. - http://insecurity-transcriptions.tumblr.com/
My music recordings - http://www.gimmesound.com/insecurity/