We don't think any program comps highest level, but AC does in fact have a SE promotion on right now (they launched it before the September 11 attacks).
www.flyertalk.com/forum/Forum5/HTML/003346.html (see Geordie's reply part way down).
It doesn't sound like your travel patterns would be of use for this promo, but if you think it is, it would be worth enquiring of AC.
andrew