Tyre advice needed

Hi all I own a Freelander 2000 2.0di model,and im looking at replacing all 4 tyres.
Which is the best size for my 16" alloys?im looking at either Bf goodrich or general grabbers.
I am planning on keeping on all the time as we tow a caravan aswell,which do you think will be the best wearing?

Well thats it I have ordered the General grabbers,get them fitted tonight