Never been asked before. LOL! That's funny!
Anyway, on to bussines.
If you don't want to wait for the 1/60 VF-1 which is due to be released later this month, I'd say go with any 1/48 VF-1 release and get some FAST/strike packs to go with it. You can not go wrong with the 1/48's. It's big, it's PT (Perfect Transformation), it's sturdy, it's iconic, it's everything you want in a valk.