Aluminum or...

I am new here nd got back into RCs after my last MC crash. Saved the old RC10 for just the case but anyway....Is good quality aluminum better then say RPM? (I did a search already) I have had good luck with the RPM stuff so I figure aluminum might not be as good but if you want to have both good looks and strength then you need good aluminum. I wish Titanium was available but also wonder if the Flex techs are good if you could get hands on them.

Great site, thanks!

G