Really rather depends if you are going to have Windows 7 or 8 . W8 is obviously designed with a touch interface in mind , but personally I would go for the tower PC . You can always upgrade to a touchscreen monitor at a later date and still have money left ! . Also tower will be easier to keep clean , and upgrade in the future .
Qualcomm Snapdragon 835 benchmarks: Antutu, Geekbench 4, GFXBench and PCMark results