More 5th wheel / g-neck ??

[lawdog]

Just another question for you guys here. The wife did not want me to get a new trailer, but we just found out she is Pg.. . So a new trailer may be necessary for her to have a comfortable area to stay while the older kids are racing snowmobiles.
I was looking in the 40-44 ft range, I want aluminum, but Budget says steel have to get thicker side walls to slow down the corrosion thru the panels.

Question is this. Am I better with a 5th wheel with a super-glide hitch (SB 3500 SRW) or a G-neck and get a tapered nose on the trailer (Tapered to 6' wide on the front edge)?
Any thoughts would be appreciated.