I have both the new BM Griptilian 550HG (154CM with the Spyderco hole) and the Ritter Grip (RSK Mk1); they are both great knives. The BM Grip is hollow-ground (HG) with a modified sheepsfoot (the tip is lower, less belly) profile. For a lot of my everyday stuff it's just fine. The RSK Mk1 has a bit more weight in the S30V blade, is flat ground and has a drop point profile. It's a different knife even though it looks similar. The 550HG is in my pocket right now. The RSK is literally in a bag at my feet.

When I go hiking/camping I swap the two and carry the RSK Mk1 even though the 550HG would probably suffice; the 550 stays home. The RSK has a stronger edge and slightly better steel; it should stand up to hard use better than the 154CM HG blade on the newer Griptilian.

My $.02, YMMV