My super stock springs car is using competition engineering 3-way adjustables.
On the other two, I'm not sure what they are. Could be summit version adjustable shocks on the nine second ladder bar car, and who-knows-what adjustable coil-overs on the four link car. Could be Qa1, could be Aldan.
For your car? I'd buy CE, Lakewood, or even Summit 3-ways. Just be sure they are long enough not to top-out at launch. The Mopar shock Scott referenced is a perfectly valid choice too!
You can spend anywhere between $50 and $1000 for shocks. You don't need $1000 shocks.
Edit: Just saw 528's post above. Vikings are excellent shocks for a budget price. If I decide to change my coil-overs, I will buy Vikings.