depends how old you are? do you have a family or plan to have one in the near future or are you a single bachelor. i still think the W124 is for older people, prefered by older men who needs the space for kids, while the E36 is more for the younger executives/people who are still single and love to go out at night. Thw W124 on the plus side has better riding comfort but handling in corners is not as good as the E36. And its nice seeing dressed up W124 in the streets, its much rarer to see than E36.
Sabi nga sa akin pang DOM yung W124 and pang Bagets yung E36. hehe