some yacht questions.please help?

whats the best yacht brand? i want a yacht thats i can cruise around in, fish in, entertain a little in, and something that i can spend days on vacation over night and cook and stuff whats the best footage for a yacht of that purpose? and please teach me with these words that i have have seen on yachts , like what do they mean….a express yacht? a coupe yacht? a sedan yacht? a motor yacht? a cruiser yacht? what am i looking for ? which one of those do i want to be looking at? and i really seem to grow really interested in the marquis 40 SC and the 50 as well…are those good yachts? do they fit my needs?