I will take a stab at this one... Sierra Nevada and Anchor Steam, I tend to classify as typical Pacific Northwest style American ales. Hoppy. Most of the hops in the US are grown in the Pac NW (Yakima valley is a HUGE hop producer). A lot of beers from CA, OR, WA are hoppy. Notably Stone, Lagunitas, Rogue, and North Coast to name a few. Ommegang and Chimay have almost zero hop flavor, as typical of Belgian style brews. There are a number of Belgian styles out there: wit, dubbel, tripel, lambic, saison, strong golden, strong dark, gueuze and so on. Their flavors run the gammut as well. Chimay is a trappist ale, meaning it is made in a monestary/brewery by monks. There are only 6 of these such places in the world that can rightfully use the term trappist. Other beers of the style must be called abbey ale. Belgian beer usually has a slight malt flavor, can be somewhat sweet (due to higher alcohol) and a have a lot of fruity esters (except lambic and sour beers - which use bacteria to get the desired flavor profile). You may see that Belgian beer uses candi sugar - some do. This doesn't make a beer sweet directly. As the yeast eats the sugars during fermentation it removes the sugar and creates alcohol - thus giving the beer a dryness. Belgian beers can be considered to be some of the finest in the world and very different from other styles. Wow... I rambled... um the short answer is they are very different. SN and Anchor = hoppy, belgian = not hoppy and somewhat fruity and typically higher in alcohol - to be served warmer and a lot of times, sipped like a cognac (partially due to the fact that slamming a strong Belgian beer can prove to be a waste not to mention intoxicating). Harp on the other hand is reminiscent of soft malt, easy to drink, and not very complex (imho). Did that answer the question?