ICS for Droid4 is coming in a week... Heard soak test has started (Link here)and since its mostly a Razr with KB and DroidRazr is having ICS for more than a month, ICS for Droid4 may not be an issue, imho... Further both are coming with same 1785mAh battery
But I would recommend to go for Photon Q, since its said to be coming with unlockable bootloader...
Simply,
Advantages of Droid4 over PhotonQ
1) Usable as GSM phone easily (PhotonQ comes LTE-SIM locked and Moto+SprintWorldPhone = NO USSD Eg: Photon, Xprt)
2) Better Build quality and beautiful (imho)
3) Comes with Capacitive buttons (Full qHD screen for you, but some prefer onScreen nav keys of Q)
Advantages of PhotonQ over Droid4
1) Comes with unlockable bootloader (Moto said) -- Single BEST reason to go for it
2) Comes with bigger 4.3" screen (vs 4" of Droid4) with colourBoost technology
3) Better Processor (as in S3 of USA)
4) May get official JB faster, unofficial the next day the bootloader was unlocked (Even OG Photon has one, though NOT as stable as official GB, afaik)
But both are good if you want Android + QWERTY KB.. Both comes with 5-row KB incl numbers + arrow keys + Excellent Backlighting...