Texans main needs: QB, DE, CB
My #1 Player at QB: Johnny Manziel
My #1 Player at DE: Jadeveon Clowney
My #1 Player at CB: Darqueze Dennard
I think Clowney is the obvious choice here. QB is their biggest need but there is some depth at that position this year. Clowney is BY FAR the #1 player in this draft so he should go #1
Now, there is also the option to trade down. The likely teams that would want to do so are the Falcons and the Raiders. If they get a good enough deal (2 1st’s, 2 2nd’s, and a 3rd within the next 3 years) they SHOULD take it.