Re: 3 weights...
Where have you been? I had a St Croix Legend Ultra 3wt and it worked well but was a bit fast for tight streams. I would give my vote to the glass Hardy guessing that it will offer the slowest action.
I use an Orvis Flea 3wt. for dry fly fishing tiny brooks and have a fast 6'3" graphit for streamers.
Glass Hardy or cane.