I haven't played Poppy much, but since my favourite playstyle is melee fighter, I thought I'd give her a go with no research and see how I do.
Well, I ended up 14/7/16 or something like that and had a blast playing her.
Runes I have are movement speed quintessences, mana glyph, dodge seals, and arp/crit damage marks. Not really a pure poppy rune build but eh, it suffices for most heroes.
Masteries were Ghost/Exhaust. Ghost as a pure defensive escape method, or lane rush. Exhaust with diplomatic immunity was awesome.
Talents were... Utility 1 for ghost. Damage 20. Defense 9 (dodge move speed)
I tried to rush Phantom Dancer as my first big item.
1: Attack Speed part of zeal and heal pot.
2: Went back with enough gold for zeal and boots +1
3: Life steal and Ninja Tabi
4: Emblem of Valor or whatever Life Steal goes into >< Can't remember, lifesteal and hp/5
5: Phage or Finish Phantom Dancer
6: Whatever I didn't do in 5
7: If game is still going, start building for Inf Edge, and whatever else you need.
My play style this game was gank, not tank. My movement speed was really nice with ms quints and PD 12% bonus.
I'm still learning this hero, but I'll run with this sort of build and experiment I guess.
Anyways, any feedback for be awesome. Cheers!