
Same chip... both sides. The two casinos are about a mile apart, run by the same tribe. The Chipco chips are used in the poker room (only at del Sol), while the rest are Paulsons (I don't play blackjack, so I don't have an easy way to get any of those).
There is a red $5 and a green $25, but those come out very infrequently. They are the same design, only different colors.
Primarily $2-$4 limit, $3-$6 limit and $2 to $20 spread limit are the games that are run there, so the $1 is really the only chip you see in play there unless there is something special being spread.
There are no no-limit games there (I think it is an Arizona thing), so I doubt you'd see any of the others in regular use.
There is also a yellow $2 chip that is used for the rake, but once in a while a $6-$12 limit game is spread and they come out in quantity for that. Quite a sight to see a table full of yellow.
There is another place, the Desert Diamond. I haven't play there as the room has a higher rake than del Sol (so I have been told). Additionally, it has been said that the room itself is quite dark and kind of hard to see what's going on. I guess at some point I should probably actually go there and see what it's all about. It's a little closer to where I live....