Hmm. My last set of tyres were 2.4 Ralphs and my current are 2.35 High Rollers (wire, 60a compound).
They are completely different tyres and I came to the conclusion that: I'll use the Ralphs for racing and High Rollers for normal riding.
I did the swap when I was camping at Afan the other week and High Rollers are much better over rocks. I rode White's level with both sets of tyres in near-identical conditions. I certainly have in my head that the Ralphs are fragile, which didn't help. They were cut up pretty badly but didn't puncture as I coddled them through the rougher stuff. They do wear fast and did get punctured by a tiny bit of flint in The Chilterns a few weeks ago. The High Rollers were much more sure-footed and led me to descend faster. The treads are pretty squishy though and may be an acquired taste.
I'd say, if you don't mind a bit of weight and rolling resistance and you like to lean the bike right over in corners, High Rollers are great fun. If you want something quick and usable for every day, Ralphs are pretty good.