I am one of the newer reloaders so others may comment from a vantage point of greater experience, however like you I have just gone through the process of setting up for 6.5 creedmoor reloading. Also like you, I did much reading and research before investing.
1. At the high end everyone seems to like the redding competition dies with the bushings, however beggars can't be choosers and you will be lucky to find that set; even if you do... finding the redding/wilson bushings in 6.5 creedmoor sizes (you know they must be purchased separately)is impossible right now. One earlier thread here suggested that the RCBS bushings will work in a redding die, but I am not sure if this is confirmed.
2. Everyone likes forster dies, but they do not make a kit for 6.5 creedmoor though some (as have commented above) have found work arounds to stick with forster dies.
3. The hornady seems quite popular and has good reviews here.
4. I wanted the redding set, but could not find the bushings, so I bought the non bushing whidden die, and I am very happy with it. It has excellent construction quality.