Yes resort fees are on top. So allow rates or be plus 40$ ish a night. And some properties charge for parking now so might need to add that on too.
Do you want a fancy pants hotel? Are you okay with a casino hotel? Do you care about room size? Do you want to be right in the action?
MGM and Mandalay bay have great pools with lazy rivers, Mandalay bay is not the most convenient location.
Paris is central and I think at least one of their pools is open year round so would be okay in oct when some hotels may have started to close their their pool areas.
Bellagio, Caesars, mirage have good pool areas and are all central and have loads to see and do. Mirage has recently been sold and has very cheap rooms for some dates.
If it's in budget cosmopolitan is central and you can get a balcony overlooking the fountains which is great fun.
If you want a non casino hotel look at Elara, it's right by planet Hollywood and attached to the same mall which has good cheap food places in.
The most budget friendly on strip will likely be flamingo, harrahs, Linq, ballys/horseshoe, Luxor, Excalibur. They're all fine, not the best, not the worst.
Don't stay at Rio it's like a ghost town.