I like both properties (SHS & HP). If the price difference is only $10-15, I'd lean toward Hyatt Place. They're definitely a significant improvement from the AmeriSuites predecessor. The rooms are superior to SHS (except no microwave at HP) and the 42" HD flat panel TV is quite nice for watching a movie or sports event. But keep the following in mind since your stay was not at a fully converted HP:

Once fully converted, HP pricing goes up significantly making the difference more than $15. Additionally, the new HP breakfast is continental (very nice presentation) with Starbucks coffee. Hot breakfast entrees can be ordered for a price. They also offer some limited food selections after breakfast, but I haven't sampled any of those.

HP is definitely going after a younger, more upscale audience. The lobbies remind me of a Starbucks. But they tend to get congested as the dining/lounging area overlaps with the front desk area -- it can be a little chaotic.

It all depends on what is most important to you.