I don't want to get the pack as I can't justify the expense. However I would like to get one of them and am thinking the Engineering variant as it has the 5 engineering consoles. I can't make up my mind though. The sensor analysis seems to, according to everyone else, OP'ed. The tactical version doesn't seem to bring much to the table. At least nothing you can't find elsewhere.
I'd probably go for the tactical Odyssey. Like you said, it doesn't stand out particularly, but between that third tactical console slot and the Aquarius escort (that actually looks at least potentially useful) it edges itself out over the engineer and science versions, at least to me.
Interestingly, the tactical Bortasqu also edges itself out over the others, but that's mostly because I can't look at it without seeing a Terran Battlecruiser from StarCraft, and the Yamato Can - I mean, the Disruptor Autocannon - just seems too awesome to pass up.
And given that I don't PVP, I'm not really worried about that aspect of things. Almost anything will work in most PVE environments, so there you go.
I'd go for the Ops Odyssey. With the Saucer Separation it has very good turning and +15 Weapons Power. Since the BOFFs can be configured for Tac, Eng, or Sci it has just as much versatility in that regard as any of the other Odyssey types.