It's very easy. BFL has delivered more than 20k mining devices and have more to go. Bitfury has not delivered any significant quantity of devices, nor has Avalon. ASICminer is the only one that has delivered any sort of significant quantity of devices at this point, and all of those are Block Eruptors, which are basically meaningless. I wasn't aware KNC was up to 3000 units shipped, is that figure accurate? Fairly impressive but it's only 3000 units.
As far as hashrate goes, I'd say at least 50% of the the hashrate on the network is currently powered by BFL chips, but I haven't actually added it up lately, so I may be incorrect about that.
Joshua, the facts:
You've taken over a year to build 20,000 devices which seemed attractive up until 6 months ago. I expected mine back in October 2012. Now they are redundant and you and your company have taken no responsibility to deliver what you promised, that is timely units of hashpower. The fact that you are still delivering this useless crap proves you have no concept of what your customers needs are. At every turn you've done everything in your power to stop people getting their money back, through various up-selling bullshit manoeuvres (Monarch, sell on the forum with added fees, chip credits, future purchase discounts, hosting). You tried (and failed) to reverse Paypal refunds. You're a fraud. It's simple.
KNC delivered timely, useful equipment and treated their customers with respect. They win. You fail.
And if you can't work out how to operate a spreadsheet in a chiefly fashion to add up your delivered hashrate, then you need a new job.