Lucius turns up his nose at (1) tomboys, (2) girls who play sports, and (3) poor people. Alecto probably gets more civility because at least she's a Slytherin and they were on the team together, but generally he's probably pretty cold to her. (... Or just threatened, which could make for some fun.)
I don't think Lucius is quite crazy enough to try to bribe Moody, so no worries there! Lucius is probably kind of afraid of him, actually, because he's convinced that he's certifiably insane. They should cross paths. I feel like Lucius doesn't try too hard to hide his corruption, so they could have words.
I <3 Xeno, even if Lucius thinks he's batty / doesn't know who he is. :)