Hey Jay,

Not an unusual problem. I usually use index/pinky for power chords, it's a little easier for me to hop strings and do stretched variations of a power chord. So I'd say you're OK there, nothing weird about that.

As for barre chords, they're not easy and it may take a little time for your fingers and muscles to get used to applying pressure in that way (getting the strings to all ring out clearly.) I would say give yourself a little more time on the barre chords and stay with it, you'll get there with perseverance.