While the first one is more realistic as the Rays would be smart to demand a young starting pitcher, this offer focuses more on the prospect capital it would likely require to get a player like Paredes. I am sure the Mariners would be more inclined to go this route as well.
In this deal, the Mariners just focus on Paredes as his cost will be high. He instantly slots in as the everday third baseman, allowing Scott Servais to move Josh Rojas over to second base, and potentially forming a platoon with Dylan Moore or Ryan Bliss (assuming they don't also acquire a second baseman at the trade deadline). Paredes slides right into the middle of the Mariners' lineup and immediately becomes their most impactful bat (that is until Julio goes wild in August...right?).
In this prospect focused deal, the Mariners send an uber-talented catching prospect in Harry Ford south to join the Rays who are lacking catching talent at the major league level, as well as any intriguing catching prospects in their system. Ford is likely to compete for a job next year and could make his debut later this year for Tampa Bay. Ford is a solid athlete who could catch as well as play a number of other positions on the field. Like the other proposal, the Rays also get a potential star in Tai Peete. The Rays love Peete and his ceiling is that of a borderline star.
The Rays get a very interesting pitching prospect in Logan Evans who could debut later this year as well. He fits into their timeline of building for the next 2-5 years and could become a very interesting arm at the back of their rotation. Evans has really exploded this year and getting a lot of rave reviews from Dipoto this offseason. In 64.1 innings at Double-A Arkansas, Evans has a 2.1 ERA with 8.3 K/9 and 2.9 BB/9. He has a solid fastball/sinker combination and an above-average slider.
The final piece is an intriguing outfielder that may be out of time in Seattle. Dominic Canzone becomes a likely name to be included in trade talks with the Rays. Tampa Bay will surely entertain offers for Randy Arozarena and if they move off of him, giving Canzone a shot to become an everyday player could be a very advantageous move for them. Canzone still possesses a lot of value, but just doesn't fit the Mariners' timeline right now.
The Mariners may be more inclined to make this deal over the one with Miller, and I would be too, but I am not sure even this massive haul is enough to pry Paredes away from the Rays.