I'd say the Hopper, Switch, Revealer, Female, and Resurrection LS are in every offensive/balanced deck I make. I never regret using them, they should all be tier 1, in my experience.
I usually find myself making a deck around the 2 liner, including cards to shuffle and hide souls just for that card, rather than just throwing it in. I don't like using it, or facing it, though it should be tier 1 or 2 at least.
I've never seen the Site Guard played, is it really that great?
The N.T. only is usually a good filler soul nowadays, as most decks have little trouble getting around it.
The TEC LS seems like filler to me. I would put it in as a last resort.
Most decks I make now include some sites, so the Deck and Hand discard ones are usually in them.
The rest I agree with. Good topic.