I fly out of T2 90% times and am intimately familiar with the Admiral's Club. I have recently also sampled the United Club in Intl A, and the BA Business club in Intl G.

Due to some weddings this summer smaller locales, I'll be visiting T1 and T3 a lot more. Any stand out clubs?

Disclaimer: I know that in most cases paying for lounge entrance is a poor value proposition, but I'm in an exploratory mood and willing to part with $50 for 3 mediocre glasses of chardonnay.