Hi, would I make more with lowlands full of spy def towers and one attack building or with just attack buildings
Attack buildings. Towers reduce the amount of plunder you make by a small amount. If you want towers wait until you unlock the highlands so you don't need to put up as many.
You get no increase in plunder from towers (in fact towers can actually decrease your plunder). If by asking "would I make more" you mean get more plunder -- then avoid towers. If you want to war, towers are needed . . . but that is for a later discussion. Cheers, Kage.
King, I recommend just going with attack builds, throw some spy buildings in there too for epic battles that need them. When you unlock the highlands, just fill up on COEs and when you're ready, start making the conversion to T5 buildings and Towers of your choice.
You don't even have LL unlocked, much less HL, and castle max lvl. It is necessary to establish a clear difference between a plunder build, and an end-game or desired build for whatever purpose. Right now what you need is a plunder build, and your main building will be a guild. It costs 1b to max out, and gives you the best plunder income for gold spent on building. The fastest way to your desired 50 or more lands will be utilizing a guild hansel build. Ideally you want ALL guilds with the exception of 1-5 T4 or T3 buildings depending on your bfe. But remember, all gold spent on a building is that much gold holding you back from reaching a new land. **CRUCIAL** Don't forget to do a land trick on every new land you explore! This can give you a free 1b or more depending on current size. Have the new land explored (this will be the first building ever placed on it) Then zero your spies on eb. Next put a guild and leave it at L1, empty spies on eb, it'll use the amount of another full bar. Then get the guild to L4. Change your build/direction immediately (NO towers and less atk, more guilds) and make sure to ALWAYS be at max plunder.