Mig-21bis vs F-5E/F

What do you guys think of these two aircraft in terms of AA and A2G. Both have been used in both of the roles, especially the Mig-21.

The F-5 has 5 hardpoints and 2 wingtips while Mig-21 has 5 hardpoints, the F-5 has a MUCH bigger payload, has a quite a large nose to accomodate a good BVR radar. The Mig-21 has a single engine=less maintenance, it has better climb rate, it’s faster and has higher ceiling. What do you guys think about their previous performances and also as AA machines? They both have similar turning/roll rates and both suffer from short range, and view outside the cockpit.