I'll share my plans in case it's helpful, and in case anyone wants to chime in on it and give feedback!
The biz card gets you 5 qualifying nights per $10K spend, which is 1 night better than the personal's 2 nights per $5K IF you would be spending enough. But the personal comes with 5 qualifying nights just for holding the card.
It helps, but you have to spend a lot or combine this with a lot of stays. We mostly stay at Hyatts if possible, and have 29 nights booked at Hyatts for this year (the only times we're not staying at a Hyatt is Tokyo Disney, a cruise, and two nights at an Amex FHR hotel to use up our Plat credits).
I have Globalist and want to keep it. I have a tally of how much our free breakfasts and free parking would have cost (even though I know we wouldn't have dined at the hotels' restaurants for breakfast without the benefit) to help show how much the benefit is worth to us. Last year it was over $1500. I think it will be higher this year because we have more nights at places where free breakfast isn't included for all (as is the case with SLH properties).
So I plan to first get the Biz card and put at least $20K on it over several months, that more than meets the MSR and gets me 10 qualifying nights. Then, the plan is to get the personal card and put at least $15K on it--MSR met, plus 5 nights for holding the card, plus 6 nights for the spend. That's at least 21 nights from CCs.
Combined with our actual nights from travel we'll be at 50. Later on this year, I'll decide whether to put more spend on the cards or do a bit of mattress running. It may depend on whether there are other MSRs I want to work on or not. I have a list of the four cat 1 Hyatt House/Place in my area and the nights that are "off peak at each" - those nights are 3,500 pts, so I'd be wasting about 35K URs/Hyatt pts for the 10 nights, but it's worth it to me. If they do a "boundless journeys" or other kind of promotion as they have in the past that gives you back some number of points (like 3K back for every 2 stays), that will tip the scales for a mattress run.