I'm going to be in Boston on Thursday night by myself and I'm wondering whether I should go to Pizzeria Regina. I'm going to be in the Back Bay, which looks to be a chowhound desert, so I thought I'd venture over to the North End. Regina sounds great, but will I have to wait a million years to get a table? Are there tables for one? Or a bar? I've got a fairly large appetite, so I'm not too worried about putting away a single pizza by myself, or at least a respectable portion of it. Or am I deluding myself? Finally, what kind is the best?