A) Drops are fine, they are exactly what they should be.
B) You can convert or trade/buy/sell the runes you want.
C) If think that one shooting bosses over and over is the concept of fun, you should look for help because you clearly have some sort of addiction problem or even ADHD.
Imagine this kids playing diablo 2 lol 'bLiz wHErRI IS My BeR RUNE?