First, as many have said before on this reflector, there is no perfect rig and we all have differing needs, so I agree with most of what’s been said so far [esp. Brian’s @G8ADD comment about taking the radio that gives you pleasure].
Those who build miniature radios in tobacco tins are having fun with a technical challenge, no doubt, but as an argument for portable-ops weight/volume reduction it’s a red herring - the Law of Diminishing Returns.
And while I agree that losing my excess body fat would mean, in principle, that I could carry extra kilos in equipment, it’s a young man’s argument. At my age [nearly 70], no matter how fit you are, it’s sensible to carry the lightest pack practical for the sake of one’s arthritic [or soon-to-be arthritic] joints.
I am lucky enough to have a number of portable rigs which I mix and match to suit different activations. Unless I want to do VHF SSB [sadly a minority sport nowadays] I prefer to take my Yaesu FT1D and KX2 rather than my trusty 19-year-old FT817, a configuration that gives me redundancy as well as better performance & functionality for about the same weight and volume.