I think mini hiccups less since its not working overtime to get the display running.
But I'm comparing my 3 on 5.1.1 to mini on 6.0.1 so it's hard to say.
Still... That's just my suspicion.
Browsing is nice on full size but its not bad like I initially had thought on 7.9"
Performance is at least a side ways step in most real world usage. Min things I'm torn whether I'd look back for or not is
-screen real estate
-retina
And having a spare pad when mini is charging, for when friends come over one pad for each person, and an additional charger that of all my chargers works the quickest!
And xbmc, reference monitor for photographs. Argh!
Weight, design, 30-pin I'm willing to give up.