I'm just curious as to which alias you all prefer Jean with? I, personally, like her Marvel Girl alias but that's just me. 
 
 http://www.acepolls.com/polls/1104847-which-is-the-better-alias-for-jean-grey

Dingle Dorf

Cerebra. I know it's been used as moniker to the the power enhancing, mutant finding tech devised by Chuck and Mags and later in X-Men 2099 as X'ian Coy Mahn's second in command, but if we were to imagine her alive in the 21st century and unattached to the Phoenix mythos, who better to adopt such a badge of honor?  

Rigor Mortis: Due to the fact that she should have been dead a long time ago.

Just Jean Grey, but if I had to choose I'd probably go with Phoenix.

I like Marvel Girl. Phoenix doesn't really seem to fit her. Although, she's not really a girl anymore. Maybe Marvel Woman? Marvel Lady? Marvel Chick?

My most favorite is probably The Whit Pheonix Crown. In that form she controls the pheonix force and all its power.

Peaknuckle Jonesburger