What if the Germans actually had a decent intelligence service? This would mean that Canaris wouldn't be the head of the service for obvious reasons. Who would be in charge instead of Canaris? I really am not familiar with the personalities behind the scenes. Perhaps Heydrich? While ultimately this wouldn't change the course of the war, Hitler being who he was, it might have interesting effects. First off, is it possible that Blechtly Park (sp?) might be infiltrated and the cracking of enigma found out? Would the sabotage of Allied factories be possible? How about assassinations? I don't know much about the capabilites of the intelligence services in OTL, but everything that I have ever read about it has been negative.
Personally, I feel that unless the Abwehr was truely a stellar service, at most they would be able to sabotage some infrastructure in Allied countries and maybe sabotage a few production lines. Maybe more minor nations would stayed out of the Allied camp and several rebellions would occur in the British empire, probably in the Middle East and in Africa. Perhaps their maybe minor unrest in India, as the Abwehr is able to develop and train Indian nationalists to a higher degree than the stillborn attempt in OTL. If they are lucky, maybe they can discover the routes of convoys coming from America and vector a few wolfpacks in their way. Later in the war either the Abwehr helps assassinate Hitler or discovers the plot before it goes off. This may mean that things are much the same as OTL , or several assassinations take place that remove the most powerful Nazis to lessen the blow of a power struggle so late in the war. Counter intelligence would pick up several Allied spies in Europe, which may severely hamper Allied intelligence gathering. Imagine if Rote Kappelle and that general, whose name I forget, who was passing information to the Soviets was caught? Again the war would still be an Allied victory, but it may take longer and The Russians may not get as far west by the end of the war if their intelligence assets are picked up.
What are your thoughts?