Black diamond MegaLite. Fly only, one pole (or you can hang it from the loop on top), stakes out with 4-8 pegs depending on how secure you want it, floor available at extra cost.
Without the floor.
With optional floor. The floor is a bathtub style to keep water out. You can also detach one side of the floor and roll it up to cook on bare ground, or have a boot/shoe storage area, or whatever. I have also used a sheet of polythene on one side of the tent if I wanted to save weight.