Diesel or Uniqlo?

i guess i would better to choose a brand first. then i woun't waste too much time on seeking a brand rather than doing research.
i got two brands in mind, Diesel and Uniqlo....i know it's quite different between the two brands but i am all interested in them. put some print ads first and will choose one of them soon.

Diesel--"for essential living" has been their slogan for a long time, the global ad campaign is brilliant, which is about global warming



Uniqlo--very strong brand image and language. They are from japan and starts to extend in UK recently. their ad in tube station are so cute.