Tractors, with their large rear wheels, are fundamentally designed to PULL.
Specialty light cultivating tractors, like a Tuff-Bilt, have a front Three Point Hitch for row crop cultivating.
Tuff-bilt Tractor System - Affordable and Innovative
Ag size (100+ hp) tractors are so big and strongly built that they can handled a LIMITED amount of front end work. European tractors, which run on road more than US tractors, frequently have equal size front and rear wheels.
Ohio built Ventrac tractors, which have equal size wheels, are available with Three Point Hitches front and rear. Golf courses buy a lot of Ventracs, which are the right tool to mow slopes.
Ventrac Compact Tractors & Attachments
While there are specialty tractors for every need there is no single tractor that is optimal for all needs.
Skid steers are fundamentally designed to PUSH.