Any of the top brands like Novak, LRP, Tekin, and Castle will give you a good product. Price-wise they all offer very good ESC's in a variety of pricepoints as well. I suggest going with a more expensive ESC with the hotter mod motors, but anything 9.5 and up should be okay with a mid-priced comp ESC. Lot of guys sware by one brand or the other, but they all offer good products. Personally, I use LRP because they've always treated me well and I've never had an issue with their products. But I've never had an issue with Novak either, just haven't used them as much.