$NP\subseteq TIME[O(n^{\log n})]$
It is definitely more plausible, for the simple reason that $NP \subseteq TIME[O(n^{\log n})]$ is implied by $NP \subseteq P$. However, it is conjectured that $NP$ requires exponential time (this is known as the Exponential Time Hypothesis), and so both statements are conjectured to be false.