I think the starting point maybe does the Rohloff an injustice, if the low gear was 20 inches then top gear would be 105.2. The problem with the Rohloff, in my mind, is the even steps in the gearing, 13% across the board. For some this is attractive but I'd consider it more useful with varied steps. Maybe a big jump at top and bottom to give you a pair of overdrives for extremes. Then the middle 12 more closely packed, especially in the frequent riding range.
I bought the I-9 after going through all this, though the Alfine 11 wasn't available at the time. The I-9 offered the greatest versatility, at the most reasonable price point and with, by far, the easiest wheel removal mechanism, ie QR for gear hookup. I'd actually say that the I-9 with a 2:1 ratio, giving 29 to 99 gear inches is a very good spread. The downsides are the extra weight, it is heavier than the Shimanos and the twist grip only option(something Rohloff suffers from as well). It really depends on useage, for serious touring then the Rohloff is going to give the lowest gears without dropping too much at the top. For general riding the Alfine 8 is very tempting due to the integrated Versa shifters. For versatility without an eye watering price then it's I-9 or Alfine 11.
Bearing in mind that I sourced this for a 40 mile commute yet, if sourcing again I'd go 3 speed/SS/Fixed or possibly Alfine 8 just to get the Versa controls. The Pompetamine Pro is a very good deal at £1k and you could add in a SON dynohub wheel and lights and come in at about £1300, or even an Alfine dynohub though reviews are a bit sketchy on it at present. I spent more than that on my commuter and had to draw the line at my desired dynohub wheel as spend was getting out of control.