I think Dan produces two of the best English blends on the market: Gordon Pym and London Blend #1000. For me, London Blend #1000 is a perfect all-day English, and it's the standard English by which I judge all others. (No offense, Dunhill.) Gordon Pym is a heavier, richer blend, with a touch of Syrian latakia. Probably not an all-day English, unless you really favor very meaty English blends, but well worth trying.
Bob