I am debatng whether or not to use the Everstone now that I am nearing his evolution level
Everstone:
Pros - - Looks cooler (imo) - Faster leveling rate
Cons - - Typhlosion has a way better BST than Quilava - Typhlosion also has a better movepool
My opinion - NO EVERSTONE
The benefits for not evolving any Pokemon is that they learn moves faster. However, their stats will remain the same until you level them up again, to my understanding. So basically it's having different stats(I'm not sure what will grow), or learn moves faster.