hi joshuab and welcome to FT

BD has, as far as i know some pretty good deals cash+miles wise, i'm not too familiar with their program but one thing i would consider is that if you use BD as your main program you most likely have to use BD to redeem your miles as well, and going thru the UK to do so is not fun anymore... LH on the other hand has the same earning levels, you can still double dip for PPS and with 3-4 RT SIN-EWR you should be able to make SEN which is valid for two years. i personaly never had any problem getting award or upgrade availability, even on some hard routes... hope that helps

sentom