I'm mainly using Acid, 'cos much of my stuff is audio from my hardware by the time it hits the computer and that's what I've always used.
TBF now the midi is all up to spec seems pointless moving too.
But it is a lot of a temptation to chuck samples everywhere and be lazy and find loops instead of programming them.
And the silly thing is that VSTi busses can't be routed to the send effects, you can only put the effects on inline, but then most VSTis have their own effects, or I just wait until I bounce it down to audio if I really need something on a send.
But I like sliceing audio about, it's fun.