First time sportsbook betting

I've been playing cards and craps at casinos for years, but I've never bet on sports. I'm taking a trip to Vegas soon and would like to bet on some basketball games.

What criteria would you use to decided which casino has a "good" sportsbook and which one has a bad one.  Is it just things like customer service and atmosphere?  Do some sportsbooks offer bets on more games than others (e.g., more obscure college basketball teams)?

I'm just curious on how you decide which sportsbooks you like/dislike, or whether they are pretty much same.  

Bonus question: based on these criteria, which sportsbook in LV is your favorite?

They are the same just different settings and atmosphere. There are certain books that are tied together same owners or what not those will all have same lines. You can get just about any game at any casino if you don't see something you want on the board just ask at a window and always tip ticket writer if you want drink tickets and if you tip them don't be afraid to ask for an extra ticket. My favorite is the Mirage best screens and comfy chairs

WESTGATE ISTHE BEST