FRA vs. MUC for SWU usage?
Coming back from OSL it looks like the routings/connections are about the same for OSL-FRA-IAD vs OSL-MUC-IAD. Is there any general wisdom as to whether one offers a better chance of an upgrade clearing vs. the other? FRA has more flights (3xUA+2LH vs 1UA+1LH ex-MUC) ... but is that representative?
Travel will be on a monday, I'm 1K on UA, most likely booked in B/M/H fare class.