The deepth and contrast of characters in the 70´s and 80´s, gave a big boost to the rivalries, beyond the contrast of styles and technichal aspects.
Here is, based on what I saw, the main rivalries under that angle.
Laver vs Rosewall: mates and sporting rivals, could accept being beaten by the other
Newcombe vs Laver: more hate than love.Same for Laver-Roche, a very torrid rivalry
Newcombe vs Rosewall: they liked each other. in a similar way as Laver and Emerson did.
Nastase vs Borg: loved each other
Kodes and Nastase: good friends, never took bad to be beaten by the other
Smith vs Nastase: real hate, too diferent
Newcombe vs Smith: very sporting guys but more hate than love, both very prideful people
Borg and Ashe: liked and respected each other.Ashe´s only bas relationship was vs Connors, who disliked so much Arthur.Ashe, instead, liked geniously Mc Enroe
Connrs and Mac, Mac and Lendl, Lend land Jimmy: needless to say.The heat in their meetings left no air left.
Borg vs Mac: liked each other, even if going through the possibly greatest moderne ra rivalry.Culturally, I always found them to be pretty similar, quite liberal both and willing to experience
Connors and Borg: respected each other but somewhat, more hate than love
Borg vs Vilas: disliked each other.Vilas and Connors hated each other.Vilas and mac were pretty good friends, but never had a big rivalry, other than Davis Cup
Vilas and Clerc: disliked each other
Gerulaitis vs anybody else: not possible to dilike Gerulaitis.Of couse, lendl was the only guy to REALLY HATE Vitas and I can see why
Connors vs Tanner: not so muc talked but, a lot of hate between both of them.maybe that started when they were both juniors (Tanner was probably the guy that most supported Ashe in the 75 final)
Connors and Smith hated each other.Connors liked a lot Nastase ( although they never played a major final against each other) and liked pretty much Kodes
Newcombe vs Copnnors: hate
Ashe vs Laver: almost hate.Ashe was more anxious to beat Laver than to beat Rosewall or even Newcombe 8 Newc and Ashe were pretty good friends)
Becker and Edberg: liked each other, in spite of their fierce rivalry
Becker and Wilander: not too much love, Mats could not stand Boris coockyness
Edberg and Wilander: rivals from their early years.Similar to Connors vs Tanner but not so torrid
Lendl liked Edberg...but Lendl disliked a lot Wilander and hated Becker
Connors liked Becker but disliked Wilander and Edberg, although there was no rivalry ( Connors was getting old when they reached their peak)
Mac disliked Becker and Wilander and him were pretty good friends, in spite of some mac´s criticism.Probably, Mac saw in Mats the guy that would fill the void left by Borg´s retiriement, that he resented so much
I don´t know about Mac and Edberg.I know Mac disliked a bit Cash ( although they became quite close in the long term) and Cash couldn´t stand neither Lendl, neither Becker.However, was in good terms with Wilander
Any opinions? any other rivalries forgotten?