Looking at the results of each side on larger ovals (Salis, Kenil, NH, Pooraka) and with the game being played at Thebarton Oval:
Eastern Park - @ Salisbury Oval Lost by 34, @ St Marys won by 31, @ Largs Nth won by 70, @ Lindblom won by 78 (3W, 1L)
Westminster - @ Salisbury Oval lost by 1pt, @ St Marys won by 29, @ Largs Nth lost by 31, @ Lindblom won by 26 (2W, 2L)
Rd 5 - WOS def EP by 45pts @ WOS
Rd 14 - EP def WOS by 41pts @ EP
QF - EP def WOS by 19pts @ EP
Ignoring all of the above, I'm tipping Westminster OS by 11pts
All that research and you still followed your heart, not your head :lol: