I currently have 5000 MRs for $500 spend in 3 months, up to 4 times, for both Platinum and PRG. Nothing on Blue, SPG, or Delta Platinum.
DW currently has 1500 MRs for $150 spend in 3 months, up to 4 times, on ED. Fortunately, she has nothing on Delta Gold because that would tempt me to leave the garden for points.
I do not mess with the $25 or 1,500 AU offers. Not worth the efforts and impact to credit reports.
@BronzeTrader wrote:I do not mess with the $25 or 1,500 AU offers. Not worth the efforts and impact to credit reports.
I wouldn't do it just for $25 but here's my AUs:
- Gal I date for a long time has 820-830 FICO scores last she checked but only has 1 CC and 2 loans and doesn't generally like credit churning. She drives a gas powered car and would like a piece of that BCP 3% on gas. Easy AU.
- Siblings are artists who pay cash for everything and whenever they needed to rent a car, etc, they had huge issues. I made them AUs on a CC last year and they pay their share within a week of swiping. I've heard rumors that Amex AU may give me flexibility in setting individual credit limits, not sure if that's true but if so it's a positive. Read about it on this link.
- The guy I jokingly call my butler (he isn't, just a neighbor who does odd jobs for me every week) goes to a lot of estate sales and sometimes finds things I would buy to resell later and in the past I just sent him funds with Zelle but I added him as an AU on one of my lower limit cards so that he can just get my approval and charge whatever the find was. It's usually under $500, sometimes under $100 but it's a nice extra income for me and adding him to Amex would be an option if I could set a limit.
So there's 4 AU possibilities for me, all who have been good stewards of AU so far, and if I could cap their spending on top of that plus earn 1-6% on the spend, bonus. Would make my life easier, and put a few bucks in my pocket for folks who are either credit adverse or credit poor but who I trust (at least with $500-$1000 of my money if they didn't pay).
If I get a Platinum card, I also have an AU possibility there -- one of my ex-employees is the most credit adverse person in the universe (not credit poor, just has no interest) but he retired when I did (extreme bitcoin-wealthy guy) and he spends probably $30,000 a year on airfare and hotels, so I would 100% pay his AU annual fee in exchange for the rewards earned. If I could cap the spend limit, of course.
So my AUs aren't just to earn $25 or whatever, but because it would make my life a LOT easier. I'd still hold out for a bonus, why leave money on the table?
@Anonymous yes, all American Express cards (personal, small business, corporate) allow you to set individual spending limits for each user right from your account. I believe you have to be logged into the desktop site to do so. Certainly a great way to rack up extra points/dollars.
@BronzeTrader wrote:I've seen:
5,000 MRs on Platinum, PRG
$25 on BCE/BCP with $xxx purchase.
1,500 MRs on ED/EDP with $xxx purchase.
I currently have 5000 MR's on my PRG and $25 on my BCP. 
Edit to add: Also on my Hilton 5000 bonus points.