Top 4 are 20 W/A(adventure/overnighter) 22 Seafarer, 23 Gulfstream, and Sailfish. Not sure of the order, but for a while the 22 seafarer was top with sailfish a close second, then the 20 and 23 close behind. The 23 gulfstream has gained a lot of popularity in recent years, earlier in its existence it was not as popular as it is now so it is catching up, but has not always been as popular as it is now. the sailfish always had a solid following and very good sales, too bad they stopped it and replaced it with the chesapeake, not sure why the nead for a name change, it is too similar in deisgn even though it is a bigger boat. I wish they would have did more to change the boat, I think they were too conservative in the new layout, it is a nice boat but for the price the only real benefit is the gen and if you really need it the thruster...which is designed and installed 100% wrong. That design itself would lead me to never buy one knowing the proper way...and then how they did it. The Sefarer has had a solid following for years and seems to be a very nice layout for a boat its size and has pleased owners for years, it has a good layout and can function as a fishermen as well as a family boat. The 20 has had a solid following as well, but seems to be tapering off a little due to cost and that the 22 offers much more boat for not a huge price jump. when the 20 was cheaper, it was one of the most popular introduction boats for many buyers. I'm sure most who ahve owned a few Grady's started with either a 20 or 22 and moved up from there. The walkthroughsd will gain popularity over the years, but until recently never had a big enough following to put them near the top, but as the needs of boatser change and new developments in boat design occur, that type of a "sport utility" boat will for sure gain popularity as it already has and will begin to make its claim towards the top of the list.