Wide opinions, as to be expected... here is my $.02, with the reasoning... you decide whats best for you.
When I almost always use the bridge helm:
1) Docking (when I have help)
2) Hot sunny days.
3) If I have several on board with me... Everyone can sit and see.
4) when I need radar.
On the other hand... when I almost always use the lower:
1) Single hand in all but the hot days.
2) always when docking and locking Single
I am very comfortable at my PH helm. I have more instruments (except radar), and I am at deck level. Trying to dock from the Bridge with the time it takes to get to the deck... I might as well set up 10 feet away and swim in with a rope
Hands down the view up top is wonderful. I have a full enclosure for inclement weather, but again just prefer the PH in those conditions if possible. The key elements... I single hand alot... I need quick deck access. I'm a 44' model and single... when a couple is on a 36 it becomes hard not to clutter that lower helm with "stuff". If you are a couple, and you have a good enclosure... most will likely use the bridge pretty exclusively. But also remember... 3' seas are night and day difference on the bridge vs inside. If you fall in love with a boat that only has 1, you will figure out how to make it work for you. If you are a couple, under 40'... a strong case can be made to just have the bridge for more space below. over 40... well it sure is nice to have both options. If you love your lower helm... 2 rear facing cameras down each side... and maybe 1 aimed at your swim platform just took care of the visibility issue, for little cost these days. Find the boat you love, and make it work for you either way!