My favorite purchase recently is a Peak Logan (keychain) QTC in SS with Moddoo clip from Overready. Amazing build and a surprisingly pleasing tint. The QTC takes some getting used to, but once I got the feel for it, it seems very natural. Although, I can't get the low as low as I would like. hopefully, the QTC pill needs more breaking in.
After eyeing EagleTac for a while, I couldn't resist the T10C on sale for $29. I was so impressed, I ordered the unusual looking PN20A AAA keychain model. Overall, I am very happy with both lights and find the quality a notch above most other Chinese made lights.