They are so different that there is always a good reason to choose any of these 3...So, to avoid regrets, gets them both!
Are you more a manual Chrono Guy?
The 5170 is for you.
Sporty or Dressy?
Sporty: 5980 and / or 5960P
Dressy: 5170, but also, why not, the 5960P.
White metal or colored gold guy?
Mono or 3 counters?
Annual Calendar or simple Chronograph?
As you see, there are too many questions related to the big differences existing between these 3 watches.
Now, if you ask my opinion, I 'd say The 5980 in SS ( which is more coherent for a sport watch ), or the 5960P ( but I would have preferred without annual calendar ).
Best,
Nicolas
This message has been edited by amanico on 2010-05-10 22:08:08