Wall thickness dos'nt mean it will be better, the spec of the tube is what you want, a thin walled 6061 or 6082 is much better than a lower spec with a thick wall.

6061 and 6082 are used to build ultralight's, another way of increasing the strength again used a lot in ultralights is to fit one tube inside the other. Two light, thin walled tubes here will be extremly strong.