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I usually go 0-21-9. Going Cleanse and Ghost.
ArPen Marks, Armor Seals (Dodge is nice too), MR/level Glyphs (Flat CDR is probably the more popular), and x2 MS Quints with an HP Quint.
My usual route is about:
Cloth Armor + 5 Health Pots, Heart of Gold (rush) -> Randuin's (do not rush)
Brutalizer -> Youmuu's (rush both)
The rest is situational imo:
Quicksilver Sash and/or Banshee's Veil, the Negatron first when building BV.
Aegis or Wit's End should also be taken into consideration for midgame prowess.
Sword of the Divine, Starks, Black Cleaver, Last Whisper, Force of Nature (depends on how much HP you have), or Madred's.