what's a good manual winch pulling a fully rigged bass boat onto a trailer with minimum effort.  Does a a block pulley make it faster or lighten the amount of muscle needed to pull the boat on the trailer?

The make a two speed winch that is great, but for the most part you drive onto the trailer and the winch doesn't come into play. The only time you need the winch is when you have motor problems.

If effort is the problem, they do make electric winches. As for the block and pulley, that, with one pulley would cut the effort in halfbut take twice as long to winch it in it's a trade off.

Avid, are we still talking about the canoe, or we moving up to a bigger boat.  With the canoe, just about any hand winch on the market should pull that on the trailer with very little effort.

If you're talking about something much larger, then figure the weight of the boat, then look at the capacity of the winch and go at least one of two sizes larger.   With my Javelin, I don't think the front loop would hold in the hull to winch it on the trailer, no matter what size winch I had.  

That's when you starting looking at those plastic slides you can screw onto the trailer bunks if the boat is very heavy.

A little Pledge or Armor-All sprayed on the bunks makey the boat glide right on, but it will also slide right off. The first time I tried the Armor-All it wes kink of humerious, the boat slid right up to the stop and when I stood up it just slid back off the trailer.