New Tires Selection for RDX

hey guys~ it is almost time for my RDX to have a new set of tires.

there are many selections of performance SUV tires in the market and i want to hear from you of which one is better.

my price range is no more then $1,000 for the whole set. reasonable?

the OEM dimension for the RDX is 235/55/18, can i go upgrade to 245/55/18 or even 255/55/18?

what is the pros/cons of going wider?

thanks!