For toddlers this young, Hyatt Regency Aruba is the standout—it's the only top pick explicitly built for the 2-4 age bracket, with Camp Hyatt running activities and those cascading pools designed for splashing rather than showing off. Marriott's Aruba Surf Club makes sense if you want a kitchen and space to spread out across multiple rooms, though it's pricier and geared more toward older kids. Budget-conscious families won't sacrifice much dropping to the Hilton—same beach, simpler vibe, real money left in your pocket.