1: As mentioned above, Dell have the door to door swap, LG do not. Their support is far better.
2: It might be the same panel, it "should" have the LUT but nobody knows yet for sure and the Dell bezel will no doubt be better than the one on the LG which is now confirmed to be the cause of all the bleed issues and not the panel itself (again, see the posts earlier in the thread). This is a design flaw on LG's part.
3: If the Dell has a hardware LUT and is similar in other areas spec wise then I will sell both LGs and get the Dell purely on the basis of the better customer support. The LG will always look more stylish because of the invisible bezel design but that design has one big downfall which has been discussed above. I don't think the Dell will have this design flaw.