This topic is going to be waaaay too subjective lol
But then.... My favorite razors of the ones I own range from the late 1700's to mid 1800's... Which I don't think is something you can provide here 🤣
Quality high carbon steel, 5/8-6/8" is a sweet spot for blade height for me.
I prefer a square point with a barber's notch, but a round nose (like you've pictured) is more recommended to newer straight shavers to avoid nicks. (ask my earlobe why your first one shouldn't be a square point lol)
Scale material/looks are important in a way, but secondary to balance. The only part on the scale that REALLY matters beyond looks is the tightness of the pivot pin and the centering of the blade.
But the biggest thing that will effect the feel of one blade to the next is going to be the grind :
Each one will be weighted differently, and will have a different level of flex to the blade.
I've tried just about every example above, they all do the job, just a very different feel to each.
I don't necessarily have a favorite, but Half Hollow and Bellied Hollow are a good midrange between lightweight and not too flexible
Stropability? That's a funny concept to me... If the geometry of the blade is no good for honing or stropping, then it's simply not a usable razor