In reply to Asleep in the backs:
There are plenty of great options in all the suggestions you've had. But it does kind of hinge on how airy is too airy. In Lakes terms, would Striding Edge be OK? I'm guessing just about, but that Sharp Edge would be over the line. If you can manage narrow but very minimally hands-on then a lot of the best hill walks in the area have sections of ridge roughly comparable in airiness to Striding Edge (though they don't all have an awkward little downclimb like SE).
If you've only a few days then I'd concentrate on the Black Mount, Glen Coe and Glen Nevis, and - to be brutal - give Ben Lomond and anything in the south a miss. Except for The Cobbler, which is a max impact walk in an easy half day, good for your return travel day for instance.
Any of these would be great:
southern highlands
- The Cobbler (very highest point is a hard scramble but you can walk with your hands in your pockets to immediately adjacent to the top block, so it's basically a doddle with a final tricky optional bit):
http://www.ukhillwalking.com/logbook/r/?i=84
black mount
- Stob Ghabhar via Aonach Eagach ridge (not THE AE...considerably easier):
http://www.ukhillwalking.com/logbook/r/?i=83
glen coe
- Buachaille Etive Mor:
http://www.ukhillwalking.com/logbook/r/?i=712
- Bidean nam Bian's three main tops:
http://www.ukhillwalking.com/logbook/r/?i=100
- Beinn a' Bheithir (miss out Sgorr Bhan's scrambly ENE ridge and do the gentler NE ridge instead):
http://www.ukhillwalking.com/logbook/r/?i=819
then up in Glen Nevis
You can't miss a walk through the nevis gorge to Steall falls - amazing scenery at zero effort. Ideally you'd carry on from there to do something in the middle or eastern end of the Mamores, but given your no airy ridges remit I'd maybe err towards the western end of the range instead. There are no dull options in the Mamores.
- Sgurr a' Mhaim is a grand summit viewpoint but an unmitigated slog from the glen, and then to link it to any other peaks is unavoidably airy
- Better would be the round of Stob Ban (go up the east ridge: the obvious north ridge is airy) and Mullach nan Coirean
-Ben Nevis: if you must. The tourist track is the only obvious non-airy route up and down it, and sadly this is a very poor way to climb the best mountain in Britain. Don't get me wrong - it's still a good day out compared to, say, going to ASDA. The summit plateau is a great place to be (in the right weather), just don't expect the walk there to be anything like as quality as all the other routes that've been mentioned.
That should do you for a few days