Looked at your prof. You may also want to consider Maple Canyon (hard, fun, unique sport climbing) and a day or two in St. George. You can try the St. George triathalon: boulder, sport, and trad all in same day.
Creek would be dumb without a creek rack. You cant show up with a single set of cams and some pink tricams and send (not that you are trying to, just FYI). Creek bouldering is just for Insta-bros and Insta-hos to post pretty pics. The good boulders are scattered around and not in walking distance of each other. If you want to boulder go to Joes, Moes, or Triassic, or RR.
Joes is pretty cool.
Overall, March and October are the worst times to be in Southern utah because every wanker from every hobby (climbing, biking, backpacking, atv-ing, jeeping, slacklinging, hiking, rafting, rv-ing, canyoneering, photographineering) are down there. But this may just be me being an elitist Utard.