I wear textile with a liner under 10 degrees but I prefer mesh with layers underneath and on top.
I can ride from 8 or so to 33 or so ( and did last weekend ).
But then I've got lots of storage which a factor.
I gave up on "breathable" rain gear and just wear a fully waterproof iCon hiVis jacket over the mesh.
The internal liner is good for warmth ( as is the iCon ) but as far as waterproof - as mentioned 50 lb of soggy mesh is no fun.
Over size is good as you can get some circulation - with all the front protection on the Burgman it has to be coming down pretty hard to get the rain jacket out but then I will ride in heavy rain with the fully waterproof Icon as long as I get the neck done up properly.
Don't ask how I know that......
I like to ride in all weathers ( cept seriously nasty Tstorms ) and at night so being able to cope with a wide range of conditions is important.
I prefer armor on me than in the jacket or pants.
I gave up on dry hands - with heated grips - does not bother me.
Got some gortex hunting boots that are light and really are waterproof and easy to walk in.
A lot depends on the bike you ride and if you have storage. There was a swing of 25 degrees between here and Renovo last weekend. Hard to get something that works all the time without layering and that means storage.
Even some of the convertible jackets....you still need somewhere to put the panels. ( buddy had a jacket like that ).