Was Yudhisthir the greatest Dharmatma ?

I know you may have something stored againest Yudi like

1) Draupadi marrying Five Pandavas and then 2) Staking Draupadi in die game or 3) telling lie to his Guru

but

Yudhisthir was great Dharamatma because:

1. His birth - Kunti invoked God of justice and as a result Yudi was born. How can the Son born to Dharamraj will be Adharmi.

2. Yudhisthira's understanding of dharma was distinct from others .It was more precious to him than royal ambitions, material pursuits and family relations.

3.He had also understanding of the finer implications of dharma, as judged by Dharma, who was testing him in the guise of a Crane and a Yaksha.

4. He rescued Bhima from Nahusha more or less same like he had rescued his brothers from Yaksha

5. His chariot stayed above ground , till Drona death.
6. At the Start of War Arjuna was confused but Yudi was firm.
7. Durring Ascent to heaven he passed every test of Dharma.

The Knowledgable seniors of Hastinapur court viz. Bhisma, Drona, Vidura even Dhritrastra too adore Yudi for his rightousness and considered him great Dharamatma.

today Gambling is not considered Dharmic but in those days Gambling was one of favorite pastime for Kings and they cannot refuse if challanged.
Here Yudi merely followed the orders of his Uncle Dhritrastra and agreed to play dice,

Even after losing his materials/bro/wife one by one and Draupadi chirharan....How he remain cool is mystry for me. Imagine the control of nerves he had, the depth of swallowing insult and length of forgiveness he gave is really Astonishing.

Lord Krishna was called God but never Dharamatma he himself used to call Yudi as Dharamraj , I don't remember anyone calling Lord Krishna as Dharamraj though opposite I have heard and hearing even some posts in MB community called him Kapati etc.

Though Lord Krishna was God he went to his Loka after being Killed/death , I have not came across anyone except Yudi who went to heaven alive by virtue of his Dharma.
Yudi was tested and tried many times and everytimes he Passed the test with full marks.

If You look at the character of Yudhisthir, he was a person who used to always see 'good' in others because he himself was good. He was a good person himself and saw only the good part of Duryodhana. Hence, he never assumed that Duryodhana would go to the extent of Draupadi Vastraharan.

(Thanks to Nilofer)