I never found AP or APX25 contrasty, I was always using it in my 6x9 back alongside 5x3 APX100, both at box speed and processed for the same time in either Rodina; or replenished Xtol, often in the same tank.
Pan F is quite different, needs careful controls.
Ian
I found AGFAPAN wether as 25, 100 or 400 (which isn't really the same as Agfa APX 25, 100 and 400) showing some more 'spirit' in AGFA Refinal (replenished) than in Rodinal.
Refinal can be considered as Agfa's D-76, when looking a the results, and being a very flexible combo too.
I found Refinal being really good in pushing Agfapan 400 till around 2000ASA, giving a rather fine-to-small but pinpoint grain.
The AgfaPan 25 & Refinal combo was very good in the studio under (diffused-) halogen light and the Hasselblad (S-Planar 120mm), where I used it a lot for sculpture on table top. The bronze's and marble's tonalities came into their own very well.
But found it not as that good for (unglazed-) terracotta where I preferred AgfaPan 100. For glazed terracotta the AgfaPan 25 with a polarising filter was better, also onder halogen light.
The info below dates from the time when AgfaPAN got gradually replaced by AgfaAPX.