BJ Whitmer used to bore the shit out of me. He'd be working these go-go-go matches with a load of highspots and dozens of near falls and it would still be ridiculously dull and tiresome. So little natural charisma or personality, horrible look as well. One of the blandest, paint by numbers indie wrestlers you will ever see.
He had no concept of pacing either - he'd work the second match on the card exactly the same as the main event, with a million false finishes and spots. Or maybe that was just the whole of ROH at that time. Still, he was and presumably is completely soporific.
Gave this a little more thought and came to an answer: Roderick Strong. This person came on board with a bunch of backbreaker variations in 2004 and in the 9 years since has done......? to alienate from that. No variation of evolving of his style, just rinse and repeat. I can almost call all of his spots in the rare match of his I watch.
Not seen him for years, but he was involved in some great matches from 2004-2006. The two title bouts with Danielson especially stand out, and there were a ton of fun Generation Next tags, as well as his team with Jack Evans which was really fun while it lasted. That those matches being great was majorly down to his opponents and partners, true, but can someone be the most boring wrestler of all time and be in so many enjoyable matches?