Looks like you got the full-art a little backwards, the fat packs (at least of Worldwake) came with 48 lands (a forty pack and one in each pack). The theme decks had the cropped ones, so the only way to get those was buying theme decks.
And I did like the Avacyn and Innistras lands having a day and night thing going on. Never noticed the NPH having the original artifact lands in them, but didn't really like any of the lands in that set.
Yeah, I had never bought either one, so I wasn't too sure about that.
Also, I remember the Rise of the Eldrazi basic lands of each type formed a mural when put together. Still, it was nowhere near as cool as getting full-art lands in each booster pack. I think I have about 15-20 of each kind, so I can build multicolor decks with 100% full-art basics, but not monocolored ones.
Sadly, my LGS has cut saturday tournaments, so I'm stuck with just 20:30 FNMs for now... I really miss the old Launch Parties, since the store's reorganized schedule probably means we won't be getting a draft for quite a while.
As far as guild mechanics go, I think Evolve, Detain, Scavenge, Unleash, Populate and Extort were good mechanics, but I didn't like the other ones that much. Mostly, Cypher stuck out like a sore thumb because it basically casts spells for free, which is something they've never managed to do right (we'd mostly get bad cards, a slew of decent ones and some rediculously broken, nearly format-warping ones), so they ended up being too conservative with the effects and mana costs; also, Overload failed to capture the Izzet guild's essence, which was a big let down since it's my favorite guild alongside the Simic.
It would've been interesting if you were able to encode stuff onto your opponent's creatures as well as your own, since it'd have fit thematically and would've made even the currently unplayable cards somewhat better (like a punisher version of "can't attack" auras, I guess).
I'd say start with something like Black/Red or Black/Green zombies. No extremely expensive mythic. Black/Green would probably be your best bet as they have more, newer cards that are going to stay in standard for quite some time.
If he likes blue decks, then I guess he should stick to that for a while. Zombies are (or at least used to be) somewhat expensive to build, mostly due to requiring playsets of Gravecrawler, Geralf's Messenger, whichever multicolored lands you needed and other expensive rares such as Deathrite Shaman, the M13 mythic Hellkite, Falkenrath Aristocrat and/or Lotleth Troll.