Allegedly

Items in their inventory when the game ended, across 1,135 games.

Item	Games	Of all games	Win rate
Power Treads	364	32.1%	45.6%
Magic Wand	305	26.9%	34.1%
Bracer	290	25.6%	46.2%
Phase Boots	267	23.5%	47.6%
Blink Dagger	235	20.7%	46.8%
Black King Bar	217	19.1%	56.7%
Aghanim's Scepter	198	17.4%	59.1%
Quelling Blade	183	16.1%	33.9%
Pipe of Insight	173	15.2%	54.9%
Soul Ring	148	13.0%	37.8%
Blade Mail	147	13.0%	52.4%
Wraith Band	130	11.5%	43.8%
Arcane Boots	117	10.3%	30.8%
Guardian Greaves	115	10.1%	53.9%
Null Talisman	87	7.7%	43.7%
Crimson Guard	85	7.5%	56.5%
Assault Cuirass	79	7.0%	62.0%
Heart of Tarrasque	78	6.9%	51.3%
Tranquil Boots	78	6.9%	42.3%
Aether Lens	75	6.6%	48.0%
Ogre Axe	75	6.6%	21.3%
Hurricane Pike	73	6.4%	64.4%
Platemail	71	6.3%	39.4%
Vladmir's Offering	70	6.2%	58.6%
Boots of Travel	70	6.2%	58.6%
Vanguard	68	6.0%	41.2%
Manta Style	65	5.7%	53.8%
Echo Sabre	64	5.6%	54.7%
Eul's Scepter of Divinity	59	5.2%	47.5%
Shiva's Guard	58	5.1%	56.9%
Lotus Orb	58	5.1%	50.0%
Radiance	57	5.0%	45.6%
Boots of Speed	53	4.7%	39.6%
Sange and Yasha	51	4.5%	52.9%
Iron Branch	51	4.5%	45.1%
Glimmer Cape	51	4.5%	39.2%
Heaven's Halberd	46	4.1%	52.2%
Rod of Atos	46	4.1%	50.0%
Maelstrom	46	4.1%	23.9%
Eye of Skadi	45	4.0%	66.7%
Dragon Lance	44	3.9%	27.3%
Mithril Hammer	43	3.8%	30.2%
Silver Edge	42	3.7%	47.6%
Force Staff	40	3.5%	52.5%
Abyssal Blade	37	3.3%	67.6%
Solar Crest	37	3.3%	37.8%
Staff of Wizardry	37	3.3%	16.2%
Kaya and Sange	36	3.2%	66.7%
Eternal Shroud	35	3.1%	54.3%
Mjollnir	34	3.0%	79.4%
Desolator	34	3.0%	52.9%
Hood of Defiance	34	3.0%	38.2%
Helm of the Overlord	30	2.6%	50.0%
Skull Basher	30	2.6%	50.0%
Point Booster	30	2.6%	36.7%
Buckler	30	2.6%	30.0%
Spirit Vessel	28	2.5%	50.0%
Gleipnir	28	2.5%	39.3%
Hand of Midas	27	2.4%	33.3%
Tango	26	2.3%	38.5%