In Cap Fed and GBA it makes a huge difference towards your enjoyment of the match as to the type and size of stadium and behaviour/ atmosphere with the fans, and how the police behave outside with the organisation, beside going to a decent match. Best fans and stadium for me is Racing Club at the Cilindro de Avellaneda by a long way. I have been to all the Primera team stadia and most of the B and some C and D in and around BA. Other stadiums that have been enjoyable for one reason or another (in particular the atmosphere) are the Ducó of Huracan, and that of Ferro in Caballito. I have good things to say about Lanus, Banfield, Quilmes and Tigre all with good atmospheres, but better to go with local supporters who invite you as they will know the ropes. I have always disliked the Bombonera as it feels pretty hostile in there (best to go with local supporters in a good platea) and its awful in the visitors end, the Monumental is reasonably good if you have good eyesight (River arent playing any big teams until they get promoted) as you are always far from the pitch so its almost a binocular job, Velez have a decent stadium but the police can be heavy handed outside (they clubbed a supporter to death last year), there is an awkward queing system and parking is a nightmare (as at many stadiums) and usually the exCombatientes have a walk about with their flag on the pitch before the match which for me has nothing to do with football, and lastly the Nuevo Gasometro of San Lorenzo... oh deary me, you have to drive through a very dangerous villa to get there, security seems weak, and again the police can be odd there. All the other stadia are mostly of smaller clubs and there is real danger unless you know exactly where you are going etc. I have nothing to say about Independiente. Hope this helps.