I've got quite a few LSP's, so heres some real broad thoughts about them.
Wolfgang Fuzion - Nice glow, awesome application/spreadablity, haven't received great durability tho. Put 3 coats on my car over 3 days to wake up to my car egged

someone was jealous of the look I guess.
Wolfgang DGPS 3.0 - To date my favorite sealant, love the look of this and the durability too! (have yet to try power lock or Black Fire's sealant)
Liquid Souveran - Easy on easy off, looks great, but always expect it not to last long.
NXT - Decent look, thats about it. :/
Megs #26 - really under rated great gloss pretty good durability and great price
Megs #21 - Never had good results with this, beading suffered really fast. Probably won't ever purchase it again.
Megs Ultimate Quik Wax - Awesome product, poor durability, but so easy to apply after a wash who cares. Love this on trim and windows - beads like crazy.
UPGP - WOWO is pretty much like cheating, you wipe on and walk away, great beading and it lasts! My current favorite WOWO product.
Opti-seal - Very easy to use also, have not received durability like UPGP but it's still pretty good for the price, usually I use this on rims/windows. (still perfer Megs UQW on windows)
Zaino Z-2 - Amazing durability and insane beading, I used with ZFX and found it a little hard to remove and apply (possibly put on a little thick) I used this on my DD and did not really like the look, it was a little to mirrory/glassy, I enjoy a nice warm glow that looks wet.
Zaino Z-8 - A spray sealant that is easy to apply and works quite well, beads very well and lasts longer than you might think for being a spray sealant.
DoDo Supernatural - Enjoy this product quite a bit, I've found it to last longer than Fuzion but the DoDo seamed to want to hang on to dirt a little more than Fuzion. Very easy application and easy removal. At the moment its my favorite "superwax".
DoDo Orange Crush - Not used yet, but smells amazing
DoDo Rainforest Rub - Not used yet either, but smells great too!
DoDo Hard Candy - Yes its a little grainy but I found it to spread really thin and easy. Easy removal and slightly longer durability than the 'soft' wax range from DoDo.
DoDo Light Fantastic - love this on silver, really adds something to light colors...and of course it smells great.
DoDo Purple Haze - good on black, good smell, pretty much like most other DoDo's.
DoDo Purple Haze Pro - application and removal were more difficult than other DoDo's - applicator got caked up pretty quick and it did not want to spread easily let alone come off when it got on - Looks really good and durability was quite a bit better than DoDo's standard waxes. (pretty close to Supernatural)
DoDo Red Mist - great product a little on the expensive size but a little goes a LONG way. LOVE the look that this product gives and it adds to the durability. One of my favorite DoDo products.
Klasse High Gloss Sealant Glaze - Used one time and never will again, I've got a bottle sitting here if anyone wants it, just pay shipping.
Collinite 476 - Tons of beading and great durability but the looks are meh and best. Also removal is not exactly a breeze.
OCW - Decent looks, I've have not received good longevity, def not my favorite spray wax.
I think thats it...the worst part is the fact that we all know how the LSP only plays in a very minor part of how the finish looks and the final product is mostly influenced by all the work before the LSP. O well, everyone loves beading right?