I came across the following table of digestibility for olive oil.

If olive oil is given a figure of 100% other oils are as follows:-
sunflower 83% peanut 81% linseed 79% sesame 57% and corn 36%

The figures come froma booklet on olive oil in Umbria. It is available
from:- Regione Umbria, Centro Direzionale Fontivegge, 06100 Perugia, Italy.
It is in English and Italian.

Cheers Brian Chatterton.