All of the above.
For Ben Nevis, climb CMD and go over the CMD Arête and up to the top, or if you have some basic climbing experience consider tower ridge with a guide.
I did the aonach eagach in glencoe with a guide last summer and loved it. Not cheap but worth it.
Ardnamurchan is one of my special places too
Islay, for the Whisky
Torridon is a hillwalking paradise
Assynt if you are prepared to go that far. Just stunning
Glen Sheil for Munro bagging, or the mamores near fort William
Seek out fish restaurants wherever you go. Yum
Glen Finnan for the famous viaduct, the memorial to Charlie, and take lunch at the hotel.
Kinlochleven for the mountain biking, and also the red trail on aonach mor
Skye. You might get lucky with the weather. It has been known.