(1) What is your home airport? YVR
(2) What types of fares do you usually buy ? Y
(3) How many miles do you usually fly each year? ~25k
(4) Do you have any kind of status at present? What is it? UA Silver (via Marriott Titanium), and two SQS away from AC 25K
(5) What is most important to you in a FFP? Upgrades
(6) Which routes do you fly most often YVR-SFO/SJC
(7) Preferred Airlines AC, UA
(8) Do you travel for work or pleasure? Work

I've been earning on AC because I live in Canada and have an Aeroplan credit card. Most of my flights are YVR-SFO for work, with the occasional trip within Canada for pleasure. When I compare Aeroplan and MileagePlus, it seems like it's much easier to earn status on UA? For instance, to get to a tier with *A Gold, I'd need to fly 50,000 miles or 50 segments to get AC 50K, but only 16 segments to get UA Premier Gold. Am I missing something here, or is UA the far better option? The only downside I can think of is that they don't have a Canadian credit card.