Best wire stripper?

I've been looking at wire strippers online for the last few days and I'm looking to buy a good reliable one. Previously I had a homemade one but after stripping a bunch of wire, its falling apart and isn't working out.

So I found these four, but I'm open to suggestions and absolutely in need of opinions.

New Cable Stripper Wire Stripper Stripping Machine by Checkpoint Industry | eBay

Handheld Wire Stripper Using Stock Blade Portable Stripping Machine Pocket Size | eBay

Wire Stripper Strip Scrap Copper Cable Machine Stripping Tool Portable Manual | eBay

Drill Operated Powered Cable Wire Stripping Stripper Machine Strip Copper×blades | eBay

We own and have used the last one on your list-- advertised as "drill operated" (but comes with a crank.)

Not sure if it is the same supplier but the product looks the same. We have used it to strip miles of No. 14 stranded wire (small stuff) and it works "OK". The set screws on the bottom v-rollers are made from swiss cheese and we had to find some decent quality (metric) North American ones to replace them. Couldn't keep the original ones tight once the hex heads stripped out.

Its a bit of a pain to get it to track the cutting wheel right down the center of the wire but once you learn the technique you can cut the insulation pretty quickly. Zipping the wire out of the insulation is sometimes a pain, at least to get the end of the wire out so you can grab and pull.

I'd rate it a 6/10--works but there's gotta be a better way!!

Jon.

I have a machine closer to the last one (a cheaper one) that works fine. Though I know a few people that have something closer to the 3rd one and they like it, I don't have any experience with it so I cant say anything about it. The one I have you still have to work with smaller wires, but It gets the job done

I got one like the 3rd one. Its by TNT Tools not by glide gear. It works great.

Have the last one. Would give it a 5 out of 10. I feel it is hard to keep wheel tracking center of wire. Bigger wire strips easier.

I have both the 1st on and the 3rd one. I think the 3rd one sucks for smaller diameter wire as it is hard to keep it centered on the cutting wheel. I bought the 1st one after I sold my last bucket of copper and like it much better. It is very simple to operate. The only downside is that you have to pull the wire through it by hand. I use it for the smaller diameter wire and the other stripper for the larger diameter wire.

I have a coppermine which is similar to the first one . I also have various 2x4 wire strippers with drywall screws.