Most INTENSE Three way I had experienced in rogue tower (Rogue Tower) 

Well you could do a lot stuff better really (such as less planes if the goal is just level 45, placing more Frost Keeps earlier and they should cover as much road as possible, Lookout should target most (shield or armor or health + what else you think you want) + maybe place some more of them, placing Haunted Houses + Mines asap as they are high profit things etc, you could have been more greedy too with that longest path and maybe expanded parallel running shorter path from phase on 3 on so High Tower chances that can hit multiple lanes etc, not taking poison bolts is also a kind of mistake there in a way.... ) , but I also saw some good stuff there too. Honestly I'm almost certain you might have stood a good chance vs Shapes playing the way you did there. Anyways that's just my 2 cents of that topic, I'm sure there are some better players than me too...