I have worn/used both Simms and Patagucci boots, both are good. I own a pair of Simms now with the BOA system ... seems kind of gimmicky, and it sort of is, but the Boa system works really well.
Boots are easy on, easy off, allows for nice even distribution of lace tension, and the technology has proven to be reliable (has been in snowboard boots for years).
The Simms boots (RiverTek Boa) are by far the most comfortable wading shoes I have ever owned. The traction on the outsoles (Vibram rubber) is phenomenal as well.
Hate to sound like a fanboy, but it is what it is.
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Trucker Caps are the new Bucket Hats.