In reply to vizik:
Subject to weather etc (which could have you heading for the Cairngorms instead), I'd look at the Forcan Ridge or Five Sisters in Dan's list above.
I'd also suggest the other Torridon hills, especially Liathach, and also the round of Coire Lair just to the south (Beinn Liath Mor, Sgurr Ruadh, Fuar Tholl).
If the North West is damp, you may get better weather in the East, so Braeriach/Cairn Toul, Ben Macdui etc might come into play.