Himjilaya
I presume that to further your career after flying the turboprop you would be changing employer, if not then go with the operator you can offer you career progression to jets.
If you intend to change employer, then do either of the 2 options open have any close links to jet operators which may help you to get your next position?
If there is no easy transition, then I would not have thought it makes too much difference which one you go for- they are both EFIS equipped modern turboprops I believe. In that case assuming they are reliable, why not go with the money?