What's "a real beating"?
A 195/50 tyre is wider and has lower sidewalls (relative to the width). If the 185/55s are getting hammered by rough road surfaces, if that's what you mean, then 195/50 will feel worse, since the sidewall is stiffer and will absorb less impact.
If "a real beating" means the 185/55s just flex too much and that affects your cornering, then 195/50 will improve things (being wider and with a relatively lower and stiffer sidewall).
On the other hand.. if the tyres just wear out quickly then a 195/50 has the edge again, as it has more rubber on the floor, so the load is spread over a bigger footprint... but 185/55's wearing out can also be fixed by fitting 185/55's that don't wear out quite as quickly (i.e. a different brand).
Ralf S.