When considering which PE set to buy one should see the history of the kits and sets in the market. The Academy kit is a knock-off of the Tamyia kit. So everything fitting the Tamiya kit will fit the Academy kit. The Tamiya kit can still hold its own, but of cause was up to date some 20 years ago, while the Revell kit incorporates latest research rersult after her location by Ballard. (This is not saying that the Revell kit does not suffer from cost effective production designing - as ALL injection mould kits do) Anyway, WEM, GMM, and Eduard did decide NOT to change or add to their sets, saying that the sets for the Tamyia Bismarck were "close enough". In one or the other forum report had been issued that the fit is OK for most of the parts, but not all (hangar doors, blukhead detail, and others).
The Lion Roar set is factually the only set that has been developed with the Revell kit sitting next to the designer, plus using the latest literature available. Even though such have been available I have heard of some tiny issues deriving from misinterpretation of photo material. However these issues are in dispute amongst the rivet counters.
Of cause the price is steep, but the material delivered is beyond doubt among the most extensive you can get and -incorporating gun barrels - more complete than others.
BTW Lion Roar will issue a real wood deck set for the Revell Bismarck, too.