Personnally i often use coolsoft with papelmedia soundfont or titanic one.
And when i want versatility and total control of the sound i load Samplelord in mulab.
Samplelord handlle very good the soundfont and you can mix with many souyndfont together with 2 click you can use diferent soundfont on diferent tracks he has a browser font can be zoomed or colored the handling is very good and i have a good skin for it for the cosmetic part.
Sometimes i use ADdictive keys or EZ keys too
And you what do you use?
What sampler did you use with Synthesia?
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