Whats most suitable for solid 22-2 and 22-4 terminations?? 110 block or 66 block?
From what I'm reading both will take a 22 gauge wire. Which one is a 'cleaner' solution?
I think it's preference, honestly. You see 66 blocks in most telecom rooms, and 110 in most Cat5/data installs.
The one thing with the 110 - the standard blocks have you punch down the first set - the ones that won't ever change, then you put the top clips on, and cross connect to those. It's easy enough to change the top wires, but damn-near impossible to change the bottom ones - they're pretty permanent... if this is a setup you'll be adding to or changing often, it may not be the best solution. But, if you're always working in fixed sets like Cat5, they work great.
66 on the other hand you can screw with terminal by terminal quite easily. And if you're cross connecting from one pair on the left to a matching pair on the right, the bridge clips make things very easy.
It comes down to what you're trying to do and how often it'll change. I like 110 better for working with and cleaner appearance, but they're a whole lot less flexible for change. I use them a lot when I'm bringing in phone lines or cross connecting to patch panels - things that are fairly set and shouldn't change. In those situations, you can generally plan ahead for future capacity and have everything punched out ready to go. But for home DIY use and cleanliness, I'd probably recommend 66 just for flexibility. Of course, things like the ChannelVision or Leviton structured wiring-type connections, they aren't stacked and use 110 - that's a different story because there isn't a bottom layer in the mix.