West Yellowstone has more facilities. Couple CG's, one real nice. BUT, in town there are groceries, restaurants, ice cream, bufflao hides, fly shops, ice cream, fly shops etc. Oh, and an ice cream place right next to a fly shop!
Tetons, the CG at the northern edge just under Yellowstone is nice, but only the camp store, and it is about 50 some miles to Old Faithful. Hopefully the road work will be finished in the spring.
Jolene and I will be at Yellowstone by mid May.