I recently started watching this show. I started with watching older episodes with Cody and Dave. I wasn't crazy about Dave before the show. Then I saw a few of the episodes with Cody and Joe. Although I don't care for Dave a whole lot I dislike Joe even more.
That' a no brainer. 
I do like Matt Graham though. Ultimately I'd like to see a show with Cody Lundin and Matt Graham. I don't feel that you have to have combat experience to be able to survive..
Same, at first I didn't like Dave much, but I did prefer him to Grylls. Then I saw the Norway episode with Joe & Cody. That was the most infuriating single thing I've seen from him. :barf:
The starting scenario had Joe already halfway down a crevasse, Cody up top, backpack on the opposite wall of Joe, and loosening anchors.
Cody tries to tell him to get up quick before the anchors give out but Mr. Joe "Rambo" Teti argues that he needs to swing his rope to grab the bag..
Now I'm no vet, but I am an experienced rock climber. ANCHORS TAKE PRIORITY ALWAYS. Literally nothing was stopping him from coming up, going to the other side of the he hole, resetting the anchors, and retrieving the bag.
Nothing except his ego and the studio execs, smh.
Cody, Matt, and Les Stroud are the most reliable with Dave not far behind Imo.
At least Dave came clean with his record and is now involved with Pathfinder school, which teaches actual skills with no TV agendas whatsoever