The comparison to Finnan may be apt but not for the reasons given.
Yeah to be honest I thought I could maybe give few better reasons. Finnan was a specialist right-back, he had so many aspects of that position completely nailed, and was extremely consistent with them. His positioning at right-back was always exceptional. he knew where to be, he knew how that position much be defended, it was drilled into him. You would never see them balls being played through him like you saw with Skrtel against Spurs (who obviously isn't a specialist right-back - just called in to do the job at the worst possible time!).
Much the same with Lucas, he is a centre mid through and through, you wouldn't want him anywhere else. He has obviously worked extremely hard at what he does and a lot of it has become second nature to him. I had a cracking seat for the Everton match and I saw two almost identical situations where Lucas came to help out over near the right back position when it looked like we might get overrun. I noticed because both times he ran virtually in a straight line towards me. I think the first time the ball ended up in the air and he played a nice cushioned header to Kelly who had time to get the ball forward. I think another time he made himself available for a pass when we were a bit under the cosh, and we managed to play the ball out well.
(Edited because I got the sides of the pitch mixed up, that's what drinking from 10 in the morning does to you!)
So yeah I now expect Lucas to do that kind of thing 99 times out of a 100 and it is a big part of his role. Same as you always saw Finnan do parts of his role right 99 times out of a 100.
I still want Lucas to add more to his game for me to get to where some of you guys are with him. But for the above reasons and more he has got a great platform to work from.
As for the comparisons to past LFC DM greats, Lucas is not far from Didi's standard defensively and is already a better passer. Shooting from distance on the other hand, not so much.
I think he's got some way to go to reach Didi's level myself. I mentioned on here I watched a game on the LFC channel from back in 2002 when we played Bolton. Christ Didi was something else, he looked head and shoulders above everyone on the pitch, and that was even with a young Gerrard in there. Seriously he actually looked like a bloke playing with a load of kids at times. The tackling, the passing, just everything was right out of the top drawer, no one could get near him he was always a yard ahead. Maybe that was a particularly good game and my memory is a bit skewed (I was pretty young back then!), but for me Lucas has still got quite a way to go before he's in the Kaiser's league!