I don't think having a favorite hand is superstitious. That is unless you play it every single time you get dealt that hand and for not matter how many chips (all in). My favorite hand is K9s but of course I lay this down preflop late in tourneys and in cash games when not getting good odds to see a flop.
But i know the feeling of "I feel like should call here...". Sometimes it seems like time freezes and for a split second you think this may be that moment in time that you are suppose to win big. This happens to me a lot when playing slots at casinos, so i sometimes up the bet for seemingly no reason lol