In reply to Rick Graham:
> Most pages in the schweiz extreme guide book will keep you busy for a week.
To pick one example, Wendenstocke combines the rock and climbing quality of the Verdon with a mountain setting. The disadvantage of the latter is the mountain weather so it is good to have a plan B (through the tunnels to the Italian-speaking cantons or northern Italy itself?). You need to be climbing 7a or harder to get the most out of it and the easier pitches can be sportingly bolted (also true in the Verdon). It is strangely unpopular with anglophone climbers considering it has some of the very best multipitch sport in the world.
I've not been to Potrero Chico but my impression is it is popular with North American climbers as much for the novelty of relatively easy multipitch sport and good mid-winter conditions as for the climbing. I'd be interested to hear the opinions of people who have been there and places like Taghia or Verdon.
The Long, Hard and Free thread on ukb has lots of good suggestions: https://ukbouldering.com/board/index.php/topic,18533.0.html