I think the question depends more on you than anything.
Depending on what type of player you are.
A crazy agg player's gonna tell you to play at a tight rock table
A rock's gonna tell you to sit at a table where no one is raising preflop
A clueless dude is gonna tell you to sit at the table with the most Hot women.
I would tell you find a table with 2 or 3 drunks 4 rocks and 2 crazy dudes
That's my prefrence for a live table.
Online unless you sit and watch for an hour trying to get a read on ppl who will prob leave within that hour anyway it's hard to find the right table... not that it can't be done it's just a pain in the butt. (I'm too lazy for this but if you spend the time searching out the right table online it can be worth it's weight in gold) I'd rather be playing though
[b]You have to figure out what your style is YOURSELF and then figure out what kind of table you want to play at that will be the most profitable for you.
No one on this site should be able to tell you what table you should sit at without knowing EXACTLY what kind of player you are.