The Doubloon bundles all have two items combined, so there's no real quantitative way to compare their value objectively. But I suspect many players are *primarily* interested in one or a few of the items in the bundles. For example, I'm probably more interested in things like 6* shards than 5* shards, or T5B over even things like the T4CC selector.
Interestingly, if you want to maximize your 6* shards (I'm talking about Uncollected or Cav players here: I don't know what the offers are for most of the lower tiers), it is the *cheaper* bundles that have the much better relative quantities, if you focus on those specifically. For example, here's how many 6* shards you get per 1000 doubloons for the different bundles


I'm not saying the cheaper bundles are "better." There's other value in them besides the 6* shards. I'm just saying that the higher bundles aren't necessarily better, depending on what you want, so really look carefully at them. If you want 6* shards, for example, the Cav Bundle #2 is actually extremely good value. Ten of those is 75000 and gets you 5000 6* shards.
Heck the Uncollected Bundle #1, which everyone (at least UNC players) can get for free with the free 15000 Doubloons is great value for free: it is 3500 5* shards and 7200 T2A fragments total.