Nearest 'Large'ish' ski resort to Basel?

[audi321]

Hi all, I'm driving over to Basel soon and will have a spare 4/5 days and fancy a few days on the slopes.

I've looked on J2Ski website, but it's difficult to know which of the resorts are tiny (i.e. 2 or 3 lifts) and those which are a decent size. Does anyone know of the nearest to Basel which is large enough to entertain me for 4/5 days?

Thanks all.