I have carried ProLink and Dumonde Tech.
One problem with very thin lubes like ProLink is that it's difficult to keep the bottle from leaking in your pannier, and even keeping it inside a Ziploc bag doesn't solve the problem (because it's thin enough to get through the Ziploc seal). Keep the little red plug that came with the bottle when it was new to help prevent this. ProLink is very good at keeping your chain clean. I try to wipe off the excess before the mineral spirits completely evaporate (but giving it a few minutes for the oil to penetrate) for maximum cleaning effect.
Dumonde Tech is a very thick lube (and expensive). It's almost like molasses. It doesn't clean the chain as well as ProLink, and it does attract dirt more easily (because it is sticky). But you need less and thus can take a smaller bottle. Furthermore, it does not leak as much as ProLink because it is thicker, and I believe it lasts longer. With Dumonde Tech, don't put a full drop on each link--that's too much. Hold the bottle tip in contact with the chain and you can put less than a drop on each link (i.e., you don't have to wait until a whole drop forms). I like to apply it in the evening in camp and wipe off the excess the next morning. That's less messy because most of the excess drips off on the ground, and it gives the thick oil more time to penetrate the links.
With either, I lube about every 500 miles, more often if it rains. In fact, I try to lube again after any rain.
I don't like to carry a rag to wipe my chain because, once dirty, it stinks and it's hard to keep the smell from permeating everything else in the pannier. That's why I prefer disposable paper. Napkins from Subway are my favorite, but Subway is pretty stingy with them (i.e., they don't put them out for you to help yourself), probably because they are high-quality napkins.
Lubing chains is a religion and everybody worships in a different church.