Never had A1 steak sauce. If anything goes on the steak for me, it's a jus and maybe some butter. And fresh pepper.
I have to third or fourth or millionth the Frank's Red Hot, I use it often on a myriad of things.
I'm a big fan of Kosciusko Mustard (
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Also, though I'm not usually too into honey mustard, if you ever have a chance to go to Bobby's Burger Palace (a burger joint by Bobby Flay, there are a few in the northeast...I went to the one in Paramus, twice), get the sweet potato fries with the horseradish honey mustard. FREAKING tasty.
/tk