Now, the gestapo has taken over
That is bull!!!!, of course Leipzig is in the responsibility of the STASI.
Anyway, not working for any of the two companies, I would say DHL UK gives a much better impression. While EAT does the assessment with interpersonal, knowing everything of the applicant, they don't give any information about the T&C they will offer. "We will make you an offer" thats it.
At present they don't hire anyone and keep pilots on hold. Seems they screened to many DECs.
DHL UK gives detailed information about the contract when inviting for the interview. Questions will be answered in the interview which is with DHL UK personal and after passing the screening it just takes a few weeks until you get the official offer.