My favorite is a 4 element monoband beam on a 50 foot tower on a mountain top. But I don't get that every outing.
A factor in my choice of temporary, portable antennas is that I don't want to carry and hang coax, and I don't want to have to lay down a radial field. So, I tend to use antennas that can be fed at or near the ground, and that have high impedance feedpoints, such as an EFHW, half-square, or bobtail. Another antenna I often use on 20m and above is a full-wave quad loop, also fed with a short feedline near ground level.