I don't have a lot of variety experience. In fact I have exactly two experience.
So take this for what it is.
My Masakane is 150/44ish and has virtually no neck with a western handle. I think this would be pretty representative of a lot of offerings give or take a couple millimeters here and there. The spine is ~2mm at the handle which provides plenty of rigidity for such a squat knife. Works great and like I said, I think falls in that kinda classic size and style you often see.
My Matt Sicard is 165/40ish with a neck and wa cherry handle (fully sealed). Spine is also around 2mm at the handle and equal stout. The shorter height doesn't bother me in the slightest and gives the knife sort of a honesuki/sujihiki hybrid feel that I personally love. A heavy right-hand bias grind and crisp (just shy of sharp) spine edges were a must for me. I went 165 to give me a bit more knife for doing turkeys and get some utility function out of it as well. Works great on turkeys without feeling too long for chickens. Since Matt and I designed my petty, I don't really use the honesuki for utility work much now but I did in the beginning. I think a 150 in this
same configuration would be great as well.
For me, the Sicard is ideal but that's one because we designed it together and to my desires and two for factors beyond just dimensions. It is light and feels wonderfully nimble in use despite the longer blade. The mono cherry wa handle lends to that and having it fully sealed vs oil or wax, I don't have to fret washing it. Then like I said, the grind and details and the mono 52100 blade all come together to make it awesome for me.
I don't know how much that helps you but I guess the moral of my story is, consider more than just size.
Maybe pickup an inexpensive one, use it for a bit and then begin drawing conclusions for yourself?