In attempting to discover what advantages any given synth offers I'll always check the presets, but I also play and tweak ...this is what I like, no rules. I got some very interesting things from Z3Ta+2 in this way. Sometimes the names of presets help to get me close to a sound I might like, but sometimes the opposite it true. "Violin" is usually pretty descriptive, but something like " Planetary Wonk" throws me for a loop....I can see a bored programmer working overtime to come up with 500 patches and names for all of them. OTOH if none of the synths had patches wouldn't it be a more bland world? This is the kind of thing I could see some Scandanavian designer doing. It would be touted as simplistic, sleek and sell a million copies :). I mean...some of those synth patches are sometimes really good. The difference I suppose, in a good namer/programmer and a not so good one.
The Korg M-1 is a good example of a synth that had way too many etherial atmosphereic patches IMO. If you want background stuff those presets have them... angels, bells, water sounds...sleepy string patches. But the M-1 can also excel at in your face sound....I think Korg wanted to bring out their effects section and what better way than to use a lot in their presets. And to me this is the problem which others have already mentioned...effects added to synths. One of the worst offenders in a mix if you want it clean and clear. I wish these synth makers would have one button on their interface...FX off.
I love the idea of creating and storing presets myself to recall later on..and I can name them anything I want :)