The problem I have with international football is quite simply the amount of meaningless and one-sided games. I love the summer tournaments, when the metal meets the meat, the real business end but I cannot stomach friendlies or the majority of qualifying games where, with all due respect, you would expect England to win the vast majority. (Not always the case but that is a different debate). Friendlies and qualifiers leave me cold!
I think both Prem and CL games are a lot more even matches, something that get the juices flowing.
I love my footy but I do think there is too much of it to be honest, so I tend to limit my games to games that match two even (ish) sides, rather than England vs San Marino or Barca vs Imps for example.