Sayyed Mohammad Al-Musawi,
Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to religious questions. In the past, he has also spent significant time in India guiding the community.
If the verdicts of different Marja' s are different on certain matter, you must follow the most knowledgeable Marja'.
It is never a matter of personal convenience but the Islamic duty to follow the most learned.