I've been running 195/45 on my 6x14BBS for the past 3 years, they are slightly smaller rolling diameter than the 175/60-13's, but they look the part and personally don't have any complaints, though I'm tempted to go 185/50 next, but the cost and choice is putting me off at the moment.
If you don't want a hardcore driving tire then the falken ZE512(195/45/14)(don't bother with it on a 175/60/13 there shit) is a good alrounder, though not up to the requirements of some of the people on here??
Guess it all depend how hard you push your tyres and also how much weight your car is running, if you've got a striped down specification then the 185/50 or maybe the 175/60-14(Peugeot 106 Rallye spec) would be more approriate.
Don't forget outer rolling diameter plays a big part in drivetrain component life and acceleration rather than just mph/1000rpm in top, its a always a trade off regardless.