since my self-imposed Ironclad Resolution, I have very little fresh stock, so I've been working through my various cigar storage containers. I've dug out some aged and forgotten smokes and have found that most cigars that I considered OK when fresh are still only OK, some have dipped a little and a very few have improved. I've not noticed any particular trends or consistency among brands, so this is all hit or miss...
I have found that I do enjoy aged OpusX and CC's like larger RG Montecristos, Bolivars and Trinidads...those seem to get better, but who can afford them at today's prices???
My advice now is to smoke the ones you really like because they likely won't get better.