I have a blue, 87 standard.
I think the blue ones are the fastest.
Yeah, there's a bit of heat noticeable when you're sitting in traffic on a 90+ degree day, but it's never been an issue for me.
One thing I did is block the side vents, which were designed to allow heat for the rider on cold days. I don't ride much (at all) on cold days, so blocking the vents isn't a problem for me, and pretty much eliminated the hot air that can leak through the louvers, even when closed.
In my humble opinion, the Venture is far superior to a Goldwing of that vintage. The Goldwing is probably the smoothest bike I've ever personally ridden, but I remember feeling that it's kinda like a big scooter. The Venture is a better motorcycling experience. The superior performance doesn't hurt either, and if ya ask me, the Venture is a much better looking bike. Looks like a bit of a rake to the front end, which is pretty cool.
The Yamaha Venture is the best kept secret of the Touring Bike World.
That's my $0.02.