I really like Fulop he has a great profile and would be a huge boost to Ds on the national level. Sadly, his paths are blocked by Murphy & Norcross who will likely take the Gov & Menendez's seat.
I'd like to see Pallone get the Senate seat, tbh. There may be better-ish folks out there (then again this is NJ, so maybe not), but AFAIK, Pallone's not bad for NJ and it'd be nice to have someone who isn't from Essex or Hudson County and isn't part of the Norcross/Sweeney machine in one of the Senate seats (Codey won't get it and Rush Holt is really a has-been at this point). Pallone has the best shot of anyone who meets those criteria of being chosen. Sadly, it'll probably either go to one of the North Jersey machine folks (maybe Alberto Sires or some Mayor/rich dude/state legislator...hopefully it at least won't be completely soulless machine hack like Ras Baraka) or worse yet, Donald Norcross (although at least geography would probably keep him out of the running as I doubt very many northern county machines would give him the top slot on the primary ballot).