The best features of the dome tent are stability, ample headroom, freestanding, and a roomy interior. Stick with lower profile tents which provide more stability in wind. By making a tent that has good headroom and slopes down towards the feet, semi-geodesic tents cut out much extra weight while still retaining much of the stability. An excellent choice for two people traveling together. These tents tend to be even lighter than the semi-geodesic dome, but they are not freestanding.
Most designs offer enough headroom to sit up and then slope down towards the feet.
Because the poles do not have to cross over the entire tent, but only side to side, the poles are shorter. This helps cut down on the weight of the tent. Usually a tunnel tent has two poles, one at each end. Do not let the fact that you have to stake the tent deter you from purchasing this style. The lighter weight usually makes this an excellent choice, especially for solo hikers.