I think the Vintage 30 will sound great in that amp, and definitely less bright than the licensed Fender speaker in there now. You'll definitely notice a bigger, tighter, ballsier sound.
Some people knock the Vintage 30, but it's the best speaker ever made for rock, IMO. And most amp companies agree.
I had a 1-12 Fender SS amp very similar to the one you have...even though yours is tube. I put a Vintage 30 in it, and it was like night and day. It proved that those speakers they put in their amps are gutless garbage.
I think the V30 is tighter than the H30, but the H30 is a little warmer. Both would be a great choice for that amp.