Some notes on FEIT 40W vs Cree TW 60W bulbs:
Crees come on immediately, with little discernible lag. FEIT's take a beat and then come on at full brightness (more of a pause-then-on rather than a ramp). Not the end of the world, but noticeable after using the Crees. This is not a "warm up" issue with the FEITs. If you leave the FEITs on for an hour, then flip them off and on again, they will once again pause before lighting up.
FEITs are ok in damp locations and in enclosed light fixtures. CREEs are not meant to be used in enclosed fixtures, and I forgot what they said about moisture.
The FEIT 40W bulbs are MUCH lighter than the CREE 60W bulbs. For certain fixtures (e.g. hanging ones), the lower weight might be a decidedly good thing.
CREEs have a rubbery-feeling outer coating that I imagine would capture more dust and be harder to clean. The FEITs just seem to have a plastic shell.
Both have small quality control issues re: construction, e.g. the translucent domes being affixed off-center, etc. One of the FEITs had a loose dome, but the bulb works fine and the fixture is completely enclosed so you can't even tell.
When we put in three CREEs, they seemed to be of more consistent brightness. We replaced those with the FEIT 40W units because the 60s were too bright, and the FEITs seem to vary more in output. I'd call it tint/temperature, but perhaps there's some variance in lumen output as well.
Overall, I dig them both. I love the price and light weight of the FEITs. I love the instant-on of the CREEs (with the understanding that being irked by a sub-second delay in my lighting is such a first world problem).
Aside: I got my first "serious" LED light about a decade ago, but it wasn't until a few years ago that Nichia made neutral-tint, high CRI emitters an option in more mainstream flashlights and the past year or so that we got some viable (i.e. cheap enough) 90+ CRI bulbs for home. In short, hooray progress!