Edit: Due to technical issues, this OP will no longer be updated, but current results can be found at Kaliborio's blog, and submissions will still be accepted.
There seem to be a lot of threads in this forum asking if specific diapers are okay, which diapers to get, et cetera. It would be nice if we could compile a list which represents what the ADISC community is likely to say when faced with such a question, so, if nobody objects, I'll do that, since I haven't found any similar threads. Just post the name of the diaper you would recommend (price and known suppliers would also be helpful, maybe a short descriptive blurb if you feel like it). As OP, I've taken the liberty of putting in the first vote.
#1. Abena Abri-Form X-Plus (Abena X4) (6 votes)
Absorbency: 2,129 ml / 72 fl. oz. (medium size - source: Abena) / 6 wettings
Joint #2. Tena Slip Maxi (4 votes)
Absorbency: 2,205 mL / 74 fl. oz. (medium size - source: TENA) / 6 wettings
Joint #2. Dry 24/7 (4 votes)
Absorbency: 2,750 mL / 93 fl. oz. (medium size - source: XP Medical / 8 wettings
#3. Bambino Classico (3 votes)
#4. Abena Abri-Form Plus (Abena X2) (2 votes)
Absorbency: 650 mL / 22 fl. oz. (medium size - source: XP Medical) / 2 wettings
Joint #5. Tena Classic Plus (1 vote)
Joint #5. Molicare Super (1 vote)
Absorbency: 1,301 mL / 44 fl. oz. (medium size - source: XP Medical) / 4 wettings
Joint #5. Tranquility All-Through-the-Night (1 vote)
Absorbency: 813 mL / 27.5 fl. oz. (medium size - source: Tranquility Incontinence Products) / 2 wettings
Joint #5. Provider's Choice Active Ultra Plus (1 vote)
Joint #5. Abena Abri-Form Extra (Abena M3) (1 vote)
Absorbency: 3,000 mL / 101 fl. oz. (medium size - source: IndependenceAustralia.com webstore) / 9 wettings
For reference, based on the figures provided by the New Zealand Continence Association, one standard wetting is 325 mL. I've rounded down here for convenience. Disclaimer: hypothetical wetting figures are not guaranteed to be accurate (see dayannight's post).
Abena Abri-Form products are coded XY by the manufacturer, where X is the size code (M = Medium for example) and Y is the absorbency level (4 = X-Plus, for example). I'm sorting by absorbency level here and leaving the size code blank, hence - Abena X2, Abena X4, etc.
Where XP Medical is cited, absorption figures were taken as a part of a testing program whose methods and results can be seen in more detail by clicking any one of the hyperlinks (they all lead to the same place). Otherwise, they are sourced by vendors, who probably get theirs in turn from the manufacturer; buyer beware, as some figures may not reflect field performance.
Entries are sorted by their rank and then by the date they were added.