Best cooking beer for sauces?

It depends on what Im making for my ham glaze I use an Alaskan Smoked Porter. For Barbecue Sauce I have used a Stone IPA or the Pale Ale and it came out great but the sauce had bold flavor like I like. For brats I've used a variety of beers and the belgian white ales seem to work good. Like alot of things in our lifes its all up to personal taste so the best advice I can give you is try different ones and finds what suits you and your style of cooking best.