Monitor Audio RX8 vs older Gold GR 60's

Hello - looking for some opinions: I have monitor audio RS-6 speakers, but there is a used set of RX8's and a used set of the older Gold GR60's available in my area - any opinions on how these 3 sets of speakers compare? Are the Gold's the best buy even though they are probably 12 years old or more? Apparently made in the UK ... Or are the RX8's the best of these 3?