bro, your question is too general in my opinion. It is like asking people "What is the best shoe for my feet?"but so far i found that only advan rg is the lightest. somehow the cost is quite high.. so i'm searching for rims that save cost and light at the same time~
Advanti wheels also ok, lightweight, the lightest advanti is 4.9kg 15inch 6.5 inch wide,@ RM1k a set