seat selection question
 

My wife and I are going on a mini rtw adventure this summer. I would like some advice on seat selection on different planes and carriers.
1st flight: SFO to Beijing(PEK) on a United 747 in global first. Current seats 3A & 3C.
2nd flight: BKK to CDG on a Thai Airways A380 in first. Current seats 01AN & 01EN.
3rd flight: Frankfurt(FRA) to Washington DC(IAD) on a United 777 in global first. Current seats 1A & 1C
Any suggestions or thoughts would be helpful.

Aren't those some of the very best seats on the plane? I mean.. what were you hoping to improve to? :)

The co-pilot seat? ;)