After researching for a while, I've found that building my own cables for my speakers and interconnects seems like it would be a (somewhat?) economical and fun way to learn the ins and outs of the wonderful, crazy, incredibly deep rabbit hole that is the enthusiast audio/video market.
There is very little in the way of interconnects which most people need in a modern system. Most information sticks in the digital realm from the source to the receiver, then it goes analog only to the speakers.
So, what interconnects would you want/need to build yourself?
As said, previously, Monoprice cables (premium versions) are the way to go for all your cabling needs if you want a quality product at an affordable price. It is cheaper than building stuff yourself, and the quality is spot on.
What is the one primary criterion you use when evaluating a cable purchase?
Quality - I want a cable which I know will work as it is intended to work. This means if I need a 50' HDMI cable, I don't want to deal with it when I'm supposed to be watching TV. Same for audio.
What brand of speaker cables and interconnects are you using right now?
I have a very mixed bag. I got a bunch of Monster Cable stuff, for about the price of Monoprice cabling, so that's my go-to cable for speaker wires. My audio interconnects are Planet Waves (custom) and other stuff is Mini High Resolution cable (custom made) with F-CONN compression RCA or BNC ends.
Is it important to you that your speaker cables and interconnects are produced by the same company?
No! Absolutely not. Holds true with most things - get the best for the money in whatever product you are looking at. Oppo Blu-ray, Denon receiver, Paradigm speakers, Elite TV, etc. Mix things up to get the best value for your money, not to match things inappropriately.
What is your preferred speaker connector type (and what brand do you trust the most)?
My banana plugs are the Nakamichi double screw down type available here:
10 Nakamichi Speaker banana plug connector 24K--015384 | eBay
Impact Acoustics makes a version which I actually like more (better construction, tighter fit), but don't sound any better:
12 AWG Screw-On Banana Plug Speaker Connector - 4pk - Cables To Go
Who, in your opinion, makes the absolute best RCA-type connector?
I'm really happy with my F-Conn (ICM Corp), but there is no 'best'. Almost everyone who makes RCA connectors, makes decent ones. I just would rarely use them in a 'normal' installation, just stuff I am making custom cables for.
Who, in your opinion, makes the absolute best value RCA-type connector?
Nobody does. They all tend to be extremely overpriced. Once again, I got a crazy deal on my stuff, so I got about 1,200 connectors for under 25 cents each. So, what I have will last me forever and I know they work well.
What do you think of ultra-premium cable manufacturers like Pear Cable, and the like?
They are trying to screw over consumers who are unaware of the math. They write poetry to deceive those who are to foolish to just use basic common sense.
What do you think of premium consumer brands like Monster?
I am not a fan of these guys either. Monster more for their business practices. But, 'overpriced' brands help stores make money, and the stores are selling them and paying bills. If a consumer isn't willing to spend a half hour (or five minutes) researching a $50+ cable purchase, then I don't blame the company that makes it or the store that sells it.
Quality is king though - Monster (by example only) tends to make a product which does what it is supposed to do. So, $50+ spent, is not wasted on junk which harms the audio quality.
Who makes the absolute best digital interconnect for less than $200?
Nobody - Digital is digital. Get the zeroes and ones to the detination reliably, and you are good to go. I use 99% Monorprice. I also use Monoprice cat-5/6 extenders for digital. They all work flawlessly.
I've run 1080p @ 85' over their 22 gauge HDMI cables. Top shelf for well under $100 at that length. Under $20 for 6' and less. Yes, that's what everyone SHOULD be paying.
Do you prefer/use hand-made or machine-made cables?
Quality is quality. I like a good fit/finish to my final product, so if I can't get a pre-fab cable which is the right length, I will make it myself. This just isn't always possible with pre-fab cables and I can't make HDMI cables from scratch unless I'm using HDMI extenders.
What is the air-speed velocity of an unladen swallow?
While there are 74 specied of swallow in the world, the European swallow has an estimated average airspeed of 24MPH. For African swallows, you will need to ask the king.