First choice for me is definitely Potter, he has experience of winning things and gaining promotion (albeit in a different league/country). I feel he'd be a good fit.
Failing that Id love Pearson Back, but not sure he would come. He knows how to build a squad of hungry players.
3rd choice Id stick with Smith... definitely over the likes of Gerard, Marsch, Lampard.
Rafa doesn't excite me at all.
Whats Chris Hughton doing these days?