I don't know how you drive your Alfa but I drive it with pride and feel like driving something special everytime I'm in that seat and want that extra thing from it.
IMHO you don't need it for intermediate levels of power if you've got a decent RWD chassis to start with. It's benefit is noticeable much more of the time with FWD because you're near the adhesion limits much more of the time when accelerating out of corners.
A moderately powerful RWD car is much more forgiving in the damp with an open diff, and more forgiving if you decide to hoon it.
I'm a fan of RWD, but for driving in the snow uphills, I would choose FWD any day. RWD cars are useless going uphill in the snow. They don't have enough weight over the driven wheels to generate traction.
It also has to be said that alfaramas comment about moving to the accellaration to the rear may have some merits in certain applications but, moving the braking to the rear is dangerous and as far as I am aware all cars (front , rear and 4 wheel drive) brake mostly from the front with an average 60/40 split.
If you dislike FWD and want an Alfa that drives from the rear then get a Q4 if you can find one and have the best of all worlds. The only disadvantage you will get is that due to the increased weight you will need a 3.2l engine and the fuel costs associated.
As for driving FWD or RWD cars in the snow and ice , a FWD car is generally better due to the engine being over the driven wheels to get you up a slippery slope and over the steering as well for 'cornering'.
In my time I have had several 300bhp+ cars, the RWD front engined was a nightmare in snow/ice. It did well in straight and flat conditions but suffered on hills and was twitchy at the rear on corners. The RWD rear engined couldn't get enough weight on the front to corner at all but did reverse well up icey slopes that other cars couldnt manage. The FWD car did well in both traction and cornering but did feel like I was drifting around every corner. The 4WD is just a joy and is the reason I even today keep hold of my Mitsubishi 3000GT
Thats not true, front will just and does spin endlessly driving uphill in the snow, the rear will spin too but gradually will push it up.
I'm talking from experience on this issue David
Have you tried a 2cv standard issue tyres against any rear wheel drive on snow ! Don't want to start a flame war but this is utter cr*p!
The only rear wheel drive that ever stood a hope was a VW beetle, as David / Pud pointed out weight of motor over driven wheels.
Just watch a modern BMW / Merc try fresh snow even with chains they spin up before the chains bite