Best- Beer.
Worst- cigarettes.

Worst - Digitech Midi Vocalist. Truly awful unit which is meant to produce automatic harmony vocals

2nd worse - Marantz CDR630 CD burner. Would only work on 74 minute CDR's (these rapidly disappeared from most suppliers shelves) and even then half the discs wouldn't play.

Worst - Digitech Midi Vocalist. Truly awful unit which is meant to produce automatic harmony vocals

Really? I have the Vocalist Workstation EX and I love it. I don't know about the automatic harmony, but I send MIDI tracks with the harmony notes to it and I like the results. To each his own, I guess. 

I think Dave, this was one of DG's first forays into this type of application.

It was even more pickier than V-Vocal with regard the sort of material you could chuck at it and get a useable result.

It did have a useful Vocoder facility, which we ended up using more than it's intended function

Best: Les Paul Custom, LP Special and LP Junior (all bought second hand), Alesis A6 Andromeda, Roland JP-8080, SONAR, Yamaha MG166c mixer Worst: Behringer XENYX 2442 mixer. Bought to replace a dying Yamaha. A couple knobs didn't work out of the box but could work around them. Then Channels 1 and 3 stopped working. Replaced by above Mentioned Yamaha. I'll never buy another Behringer product again.

Some old threads are worth reviving.  This one is certainly still relevant.

Simply timeless. Best= Yamaha NMS 10's Worst= Roland MP32 ( cannot even give it away and it cost me $1,500 )

Best: Sonar 6, Digitech gn3, Ibanez active pickup bass, Gibson Les Paul (used), Waves Gold Bundle. Worse: Pro Tools 6 LE nothing but troubles for a year, then went to Sonar, VRM Box from Focusrite still can't get it to work everytime.

A different tact here, I am approching this from the indirect value I got from the purchases rather than the quality of the products.

Best - probably the Steven Slate EX $20 no brainer from Audio Midi, why, because it got me a crossgrade to Kontakt in an NI sale. If i had not got that no brainer I probably would not have got Kontakt which is now my most used VSTi.

Worst - X1, and before the row starts, not because its a bad product, but because of inertia on my part,I have not got round to learning it, so I might as well have waited for X2. X2 looks like it will be very nice with some features I want. Looks like they have not messed further with the interface so I am going to have to take that inital pain.

I'm surprised no one has mentioned a custom built computer or Omnisphere...
Cake ought to be proud many list Sonar...but it ends with 7PE... ha!  (makes me wonder about upgrading!)

my bests would be:
JBL 4311 monitors bought 30++ years ago and later a set of Auratones.
SuperVee trem system on my Strats, replacing Leo's piece of junk. Better than any Floyd too. 
CD architect
My Echo sound cards - Gina, Layla 20 and now the 3G
Roland XP50 (now have a JV2080-loaded w/expansions and a XP80 too).
EZD morphed into Superior 2. 
Sony MDR 7506 headphones

worsts:
Just crappy, low budget equimpent, like an Alesis guitar amp, Art rackmount digital FX, cheap guitar pedals -  basically all lured by low prices and taking a gamble.  Not to say a SM57 (etc) isn't rated high, though.