This is another tie between two. Happily, its between two very different types of base...
For a full coverage foundation, I will nearly always opt for Loréal Infallible 16hr. Its one of the very few that is pale enough for me. Everything else makes me look orangey-yellow and just...ick! My bottle of Infallible is ridiculously dinged up and grubby, so I shall once again let Google save my picture loving hiney!