Don't know what the bias will be tonight. The Big M can be death to speed when sloppy and windy. Anticipating that will be the weather at post time. I'd watch a few races and wager lightly until you see if there is a bias.
All things being equal though; give these two a look:
3rd -8- Glass prince-ton of back class, competive form and races well on off.
8th 1- Ballerat boomerang- competive form. As Kramer on seinfield once said, "loves the slop; eats it up. His Mother was a mudder."
The latter of the two is getting a wp wager from me regardless of the swamps bias tonight.
Good luck