T-Tar may have higher stats, but there's a few reasons why. First, T-Tar is part of a 3-evo chain. Which happens to have extremely high levels. Rhydon only has 1 pre-evo, and it evolves relatively fast. Second, T-tar is meant to be the Dragonite of GSC. They have the same base stats, and similar strengths. Actually, T-tar has higher base stats than some legendaries! So you see, it's really not fair to compare a pokemon like Rhydon to a legendary. Rhydon would beat T-tar though, no doubt. Unlike the draconic one, Rhydon gets stab on a s.e move, Earthquake. I'm sure it would hurt, being hit with a 150-base super-effective attack. But let's not have this disintegrate into an argument. Compare Rhydon to something on its level, such as Golem.