Why isn’t the tub centered on the wall in the lower left design? It looks very squished there but I like that layout the best. (I never like separate vanities for the reason @felizlady mentioned.)

Walking into a bathroom and facing a gorgeous tub is great - if you’re not sacrificing vanity or shower elbow room.

If you post a complete layout, with adjacent rooms, some pros might make suggestions you’re not thinking of. Let them know where the outside walls are so window placement can be taken it to consideration.