Are you looking at the new bikes?
My opinion on the F658 is that it's the same quality as the Vstrom but higher priced, minus a brake rotor.
why they did that I don't know. The rotor for me is a deal killer, since there doesn't even seem like a reasonable way to add a caliper & rotor to the other side.
The F700 seems like a BMW Vstrom to me. I only like the looks of the 800 Beemers when they're loaded up with luggage, shod with knobs and covered in mud. As street bikes.... Meh.
I think the new Vstroms have come a long way in the looks department, but I don't think the old ones look bad. Having test ridden the F800GS and then ridden the same roads on my Weestrom, I was underwhelmed at the BMW, and felt the BMW had a vague steering and buzzy motor when compared to the Suzuki.
If you're running on looks alone, buy what moves you.
Me, if I had to buy a new bike today, it would be either the new 650 V-Strom or one of the 800cc Tigers.