My opinion is that if you're going to play rock, steel sounds better than nylon. This does not stop me from playing rock on my nylon acoustic, though....

Sorry, I can't resist this... Hire Slash to play a country jig in the background and sing in really gruff voice.Seriously, the GnR version is the same...

I am also allegic to plectrums. Here is an excercise: grab a plectrum and sit and pick the strings one at a time: Down down down on low E up up up on ...

My opinion is: practice most on what you want to play the most. I personally play anything with steel strings very rarely (don't like the feel in my s...