We're in the middle of such a project ourselves at the moment.
We did a light sanding and decided on satin Varathane. We have a lot of wood, and felt that all high gloss would be a bit overpowering. We are doing the highlights - details and beading on the cabinet doors, bulkhead edge moldings, companionway moldings and fiddles in high gloss for some contrast. I use a natural bristle brush and thin the product about 15 - 20% so brush marks flow out better. So far it's looking pretty good.
This time of year everything takes longer to dry so patience is important.