With kids this young, you need two things working hard: genuine toddler programming (not just "kids welcome") and enough self-contained amenities that you're not managing meltdowns across a sprawling resort. Smugglers' Notch and Grand Lodge on Peak 7 both nail this—one through relentless kids-club depth, the other through everything-under-one-roof design. Vermont's cheaper than Colorado right now, but Breck's condo layouts and aquatics complex do matter if you've got cabin-fever concerns. Either way, skip the boutique lodges at this age; you need resort infrastructure that's actually built for toddler chaos.