uk has good torpedo bombers and best t3 fighters.
Some people say that US has best t4 fighters and others US airplanes are average

personally, i m US cv fighters whore and it works good

uk T4 fps get pwned soo hard by my t3 us FPs. DBs are about about
the same .tbs are good ok uk side. UK has
excllent armor. US has more aircraft space for CVs. US CVs are the
best IMO.
edit:
us is excllent for new cv players but uk is excllent in the right hands. i
do belive UK has better plane armor and protection then most.

except for that nobody is replying lawl :P

People always complaining that UK has stinky DB and lame FT, so i think you should choose
UK and prove to them that they may be wrong :p

Anyway, just choose US for sky domination or you may be blamed for not providing sight
with big CV, and im sure that anyone who comes next will suggest you to choose US though