Ganymed was the first VSTi I ever played with, and it pretty much sold me on switching to a VSTi-centered workstation. I keep coming back to it for the Fairy Harp, Warm Bell Pad, Reso Guitar, and Pad 2 presets. Some of the other presets are strange for the kind of music I make, but they are interesting nevertheless. The more Indian-sounding presets might be right up your alley.
Ganymed--Vivaldi, too--has more versatility than I know what to do with. The presets alone convince me that it's capable of a plethora of interesting, even soul-stirring, sounds. Last time I checked, there was no manual, and I want one so badly that I offered to help edit/code the thing if it'll help get it out. (I try not to email developers of free programs, because I figure they're already giving away enough of their time without having to respond to tons of email; but I did write the author when I first downloaded Ganymed and got an immediate, very nice reply.) I want to understand how to tweak the settings to get sounds like those of my favorite Ganymed presets, so some tips on how to do that would be really nice.
Finally, I like the look: easy on the eye, smooth, well-organized, definitely classy.