What other brands that you use inspire the loyalty/offer the rewards of the BAEC?

Having a moment: I am in Jersey, just for one night, so as to get Gold status...and so that after a year of that I'll drop down to Silver and still have "Status" and most importantly lounge access (I don't anticipate flying enough to retain Gold or even Silver during my next membership year).

Jersey's nice, but what other brands have people gone out on a limb for?