my turbo has 17s, it handles well but and i like the way it drives, traction is greatly improved and grips mint in the corners

my runabout was on 14s, it was brilliant for chucking about but with no arb's or strengthening just shocks and springs it was a bit bouncey in the bends and used to step out when you wouldnt be expecting it

the new stripped out effort will be on 15s or 16s, i think they offer the best compromise between looks, handling and weight, plus tyres are cheaper