Ya gotta remember there are as many breeds of sheep as there are bowyers. Some breeds have much finer or softer fiber than others. Some are better for material against the skin while others make better outer garments. Next its going to make a difference whether you spin fine yarn or coarse and then use a single ply, two ply etc. The finer the spun yarn the finer the weave. If you wash and full the final product you have to watch what you are doing or the garments will maybe fit a kid or baby instead of a adult. Speaking of merino it is a fine wool to spin and weave. I use about 50% merino in my socks. It takes a lot of time, dedication and work to take a raw fleece to a finished product.
Just don't jump into this area unless you are prepared to spend a lot of time. Of course to me this and other Traditional ways help me understand better a simpler time.

Traditional clothing etc. I have spun, wove, knitted, fulled etc. Toque (stocking cap), Matchcoat (small blanket), Legging ties (wool&braintan, also fingerwoven buffalo), linen lined wool vest, heavily fulled wool for snowpac liners, fulled wool hood, two breachclouts, peruvian braid belt for same, wool socks, half mitts. There is no end to what you can make if you so desire.

Yes, that's what I'm talking about!

Thanks for all your replies, good food for thought.