Best Ben 10 classic aliens

XLR8 leads with an ELO of 1,409, ahead of Upgrade (1,369) and Heatblast (1,333). Ranked over 1,603 duels between 19 contenders, last updated September 27, 2026.

Check out the ranking of Ben 10 classic aliens: Wildmutt, Heatblast, Stinkfly, Cannonbolt and many more.

How this ranking is computed

Every duel won lifts a contender and every loss drops them, by an amount that depends on the opponent's strength: beating the leader is worth more than beating the last. It is an ELO, the same principle as in chess. Duels are not drawn at random — an adaptive entropy sort puts the least predictable match-ups first, which settles the ranking far faster than a full round robin. A worldwide ranking is only published past 30 completed plays. Known limit: a contender who has faced few opponents keeps an approximate score, and the bottom of the table moves more than the podium.