I've often heard that the most versatile and efficient antenna is an open wire feeder to a doublet on the lowest band desired. This antenna can be then tuned to any band. I ordered some nice copper wire and spacers from TTS Systems. I'm using dipole centre pieces from Emtron which I like very much.
TTS Systems were good to deal with and they dispatched quickly but I was disappointed to find that three of the spacers were faulty (missing centre hooks on one end) which seems like poor quality control given such a small order.
The dipole doesn't have enough space for 80m so it has substantial drooping ends in order to work on 80m. My plan is to replace these drooping ends with loading coils.
I've cut the dipole for 40m and dispensed with the half size G5RV that's been my main antenna in recent months. I'll have to make other arrangements for 80m, perhaps some sort of end fed system.
It's hard to compare antennas on HF due to the incredible changes in conditions but it sounds good and very low noise to me.