From a quality/strength point of view there is nothing wrong with the old Weavers - I have several sets that have been holding their scopes in place for decades. If you are buying new then pick what appeals to you - all the quality brands will do their job well if you install them properly.

One of the sanest, surest, and most generous joys of life comes from being happy over the good fortune of others.
Archibald Rutledge