The main reason being that he will boost your Titan Performance. The better you do against titans, the better loot tier you get. The better Loot Tier you get, the better chances you have at getting more ascension materials. More ascension materials = you can ascend more of your 13 heroes
Are all the listed heroes at 3.60 level and just wait for gloves to go to a final ascension? Do you have Compass and 4 Capes (blades, orbs etc) to ascend a hero of any color?
If no, then I’d wait and raise heroes to 3.60 and play with them for sometime, combining them in different teams. With that you’ll know better what hero you like the most. More importantly, by that time you most likely will get more gloves.
It’s hard to advise you without knowing your other heroes but Wilbur will help you complete events and quests so I’d pick him. Wu Kong is another great hero but if you don’t have maxed healer you should go for Boldtusk or Melendor
Wilbur, Wu Kong and healers can do their job at 3.60, provided their special skill is maxed. Hitters need ascension more. I’d think of Grimm, Scarlett or Caedmon first.
IMO Wilbur 1st… Wu Kong 3.70 can survive as long as wilbur special is active… but wait… wilbur self at 3.70 can survive duh
I prefer Boldtusk 1st… can be as healer on offense and also can be as tank defense, also support for Titan.