I'm so fond of Fruity cos of:
-Easy step sequencer, easy song schematics, easy edits.
-Every channel (weither it's VST/VSTi/sampler/proprietary format/WASP/Simsynth/TS404/...) has easy sound edit,
-Very easy Midi remote, (right click, auto accept etc) plus editing of each parameter is easy, throughout the whole song,
-Cool built-in delay into sampler channels: each parameter (FB, cutoff, reso, pitch, pan) continues on last delay sound, so no 'after delay effect filter' but rather fluent modulations
-It's the professionnal Rebirth, confirmed after 3.5 being released so it can be mixed on VST mixer

Now w multi-out, lots more new possibilities will arise, like putting decent realtime Fx after each bus/channel
-Downmixes 16bit via 256bit calculations and high interpolation if you want, at any samplerate (preferable 44.1) so once you downmix, it can take a while but it will sound best.
-Supports Dx/VST/VSTi fx and synths.
-...
Con's: hard to fine tune delay time
Visit
http://www.fruityloops.com and get the demo, if you're interested! Fruityloops does not eat your registry, it's the most simple install you'll ever get

And the Full version costs only *99$* Rebirth, it's direct competitor, is about double the price and offers a tenth of Fruity's options...
A big fan I am,
at0mic.
ps. In aviation they ask us to write everything in capital letters. Cos some people's handwriting is just not readable when the write normally

And we want to avoid confusion as you may understand details can be very important.