If Ebron was compared to Eifert, IMO, there really is not a comparison at all. Here are the combine/workout numbers for both players; Eifert was 6054, 250 pounds. He ran a 4.65 forty, benched 225-22 times, had a VJ of 35.5" and ran a shuttle of 4.32. Ebron was 6043, 250 pounds. He ran a 4.60. He benched 225-24 times. He had a VJ of 32" and did not run the shuttle.
So, Eifert is taller, bigger framed and ran within 0.05 seconds. Ebron benched 2 more times and fell short in the VJ by 3". Pretty much a wash. Now, not sure where the weakness as a blocker comes in. Did he struggle with his reach blocks? Maybe. Reach blocks are some of the hardest to do and Ebron does not even attempt them. Angles was his weakness, but he showed good tenacity and the ability to stick on a lot of blocks. Ebron does not. He will fire off and make the initial pop (in instances where he tries to block) and then can get shed pretty quickly. He is not sticky as a blocker, bends at the waist, and just has poor technique. And, that is when he gives the effort. When he appears to be lazy with it, he will pop right up and give up his leverage, getting driven back into the backfield. Eifert may be beaten by speed or have a better end work him, but Ebron gets blown up and even when he tries, he gets worked. He has much further to go as a blocker.
As a receiver, Ebron has a bigger catch radius, but he is not all that in the speed/agility area when compared to Eifert. Eifert was pretty damn good at high pointing passes down the field and made good adjustments in the air. I would give the edge to Ebron there as he can make some acrobatic catches, but not as great as many want you to believe. Furthermore, in the last draft, Eifert had the best hands of ALL the TEs with a drop percentage of only 5.26% and on throws over 20 yards, he did not have a drop of a catchable pass all season. Only Keenan Allen had a lower drop percentage for all TEs and WRs. Ebron, as stated above, had a drop percentage of 11.43%. To me, I want the TE that might be a little less acrobatic and athletic but catches the damn football.
And, while many tout Ebron's versatility, Eifert lined up inline 20.57% of the time, in the slot 34.29% of the time, and outside 45.14% of the time. He showed just as much versatility.
To me, not even a contest that Eifert was a better prospect.
Back to the topic of the thread, if given the choice between Dennard and Benjamin, not even a question for me, I take Dennard.