20-40 commerce...hand reading excercise

[riverboatking]

villian is the best player on the table, very solid, aggressive, and i generally try and stay out of his way, and he knows this.

i have ~5K, he has ~10K.

i straddle and four players call, i check w/66.

flop comes 10d 5d 3h.

villian leads for $300, i call, everyone else folds.

turn 3s (10d 5d 3h).

villian leads for $800, i call.

river 5c (3s 10d 5d 3h).

villian bets $1500.

let me also say for what its worth, that on each street i thought for a little bit before acting, which may help elucidate the range of hands villian puts me on.

i'm not so much asking for advice in this hand as i am posting this because i think its a good excercise for hand reading.
also i thought it might generate some interesting discussion beyond what to do with AA when someone checkraises you on the flop.