I'm kinda partial or bias to CSR..Which I consider the best Moderate..
Honestly either of the 4 are fine, but I'd rate them like this:
1st CSR
2nd POR
3rd POFQ
a distant-->
4th CBR...
Heres why?
1st off: Pool . Each resort's main pool is nice, but the POFQ is a lil bit on the kiddish side. CSR nice theming & never ever crowded at all. POR Very nice as well w/ a nice side crowd during all hours. Same w/ CBR. POR's is nice and close to the main bldg, which is very convenient too. CSR a lil far but worth the beautiful walk.
2nd: Rooms. This fairly even for all. It all depends on your taste. I believe all have updated rooms now. I was fortunate to saty in them for POR & CSR. I loved both. POFQ I didn't stay in for more than a day. CBR never stayed inside.
3rd: Food area. I think by far. CSR Pepper Market. Never a wait to be seated. no more than 15 seconds .honestly. Also they bring u the drinks for a really small tip. (not a big deal) All the others were so darn packed & it really discouraged me. I felt like I was back at the values.
4th: Transportation. CSR definetley gets the nod again. Never once did we wait to or from any park or DTD. The fact that its a convention hotel helps. But Both the POR & POFQ have a nice boat ride to DTD. Bad side is the buses there. LOng long wait, especially from HS Fantasmic show. Both buses returning to the resorts from there were a minimum 7 or 8 buses. CBR felt just about average.
5th: Grounds. All are beautiful. POR & CSR stand out IMHO. CBR is spread out and the theming to me doesnt feel like Disney. Plus main Bldg is no where near anything. Check in area. POFQ is very small. Kinda claustraphobic if you ask me.
Lets put it this way: This is Disney, No matter which you choose, they will make it a magical time regardless. Have fun choosing & enjoy!