Whats a good deck to make in yugioh?

I've been dueling for a while now, and had different decks, but I just get bored.. I haven't found any deck that keeps me entertained long enough.. currently I run a formula monarch deck and a disaster dragon deck. I've also ran gravekeepers, blackwings, zombies, macro monarchs, machina gadgets, ancient gears, and NOTHING lasts more then a few weeks, I want to make a deck, that I love completely, and that Is both competetive, and fun. But I have no clue what to make.. victory is no fun if you don't enjoy the road to it... any suggestions? I don't like my dragons much cause the pattern is too damn predictable... same for blackwings, gravekeepers, and machina gadgets.. its just alll easily forseen. I want something fun, unexpected and good. Any ideas or suggestions?