Which aircraft required a longer runway, the He 111 or the Ju 88 ?

[Revi16]

It would depend on which models of the Ju 88 and He 111 that you are referring too and it would also depend on the temperature and altitude of the airfield that they are taking off from.

Identically loaded aircraft taking off from an airfield located at sea level will use less runway on a 0*C day versus a 30*C day. As the elevation of the airfield increases or the temperature increases, so does the takeoff run required for the same aircraft.

Another variable is "flap settings". You can takeoff and land with various flap settings which will affect takeoff/landing distance.