I have a Kruzer and absolutely love it. I have not used a Hopkins, but here are the 2 main reasons I bought the Kruzer:
1. Planning for the Future: The Kruzer is compatible with all M&R pallets and accessories like the tri-loc pre-registration system. This means if you plan on upgrading to an automatic press in the future, you won't have to buy all your accessories and special pallets and registration stuff again, and the transition will be smoother as you will already be familiar with those systems.
2. Brand: M&R is the hands down leader when it comes to technical support and they aren't going anywhere. If you need a part a few years from now, or have a problem with the press, they can help you and help you fast. This is huge!
There are plenty of other great features, like stock side clamps, great fully toolless micros, the slim pallets which are also quick-release (this means you can fit a smaller shirt on a wider pallet and maximize print area, unlike presses like the Vastex which have raised pallets). The Kruzer only comes in one configuration, and that is fully stocked. You won't pay extra for anything, since it is all there. I'm not sure what the cost of the BWM is, but the Kruzer is very well priced considering it is a fully featured production ready press.