For me it's Gowipe at th8 2 rage 1 heal or lightining depending if there are cc troops in war. Lvl 2 Pekkas at the moment and they are awsome.
Every time I see this poll and it is almost everyday it is usually posted by someone that is scared to try new things looking for a cure all because they cannot adapt and do not understand troop movement and AI.
Every Attack in that list has its purpose but not perfect for every base. So etc for me too.
gowiwipe ,really depends on what n where im attacking tho.