Is there a consensus - 6/12, 8/16, 10/20 or 15/30

[NoRiverRats]

Off to Las Vegas on Sunday, second trip this year. Usually play HE at Bellagio 8/16 but also play Mirage 6/12 and I want to play the Orleans on this trip. I am comfortable at up to 15/30 and have a bankroll to play above that but don't because I have more to learn. Before this trip I thought I would check out what those who have gone before had to say about these games. What I found was that opions were all over the map, hence my post here. As far as I can tell 2 plus 2 posters are among the most knowledgeable out there. My question - which is the best game all things considered, which one usually has the best mix of fish, tourists and the minimum number of really good players? I know there are lots of variables and I take table selection seriously enough to only play 4/8 if that is where the beatable games are, and I know time of day is important. Outside of those factors, I am looking for some solid, informed opions. Thanks very much.