what is UPX's best compression method
I Have been trying out different EXE packers recently. I tried out ASPack, UPX, mPress etc.. While trying out half a dozen packers, i observed that most of the packed EXE's can trigger false virus signatures. Even UPX is no exception. Still, my choice is UPX. Can anybody, please, suggest me what is the best possible compression / packing method available in UPX.?

I am quite satisfied with UPX --lzma myEXE.eXE 
still, would love to hear for you people on this.
I am not comfortable with UPX --ultra --brute myEXE.EXE since it eats up hours to do the trick.
what is UPX's best compression method
===

I Have been trying out different EXE packers recently. I tried out ASPack, UPX, mPress etc.. While trying out half a dozen packers, i observed that most of the packed EXE's can trigger false virus signatures. Even UPX is no exception. Still, my choice is UPX. Can anybody, please, suggest me what is the best possible compression / packing method available in UPX.?

I am quite satisfied with UPX --lzma myEXE.eXE 
still, would love to hear for you people on this.
I am not comfortable with UPX --ultra --brute myEXE.EXE since it eats up hours to do the trick.