I was unsure to comment because the forum really has less activity. It lacks the past with active users. Since Ajay has completed 29 then I wanted answer this post.
In terms of BO, Ajay is far the most underatted actor but his success has so much value with longativity with almost 30 years of survival. He has several bumper openers and highest opener of the decade in the 90s era which is excellent.
When he debuted, he became the first actor to defeat one of the biggest director Yash Chopra and two senior stars in Lamhe with all due respect. Phool Aur Kaante was a Blockbuster and has 1.75cr footfalls. Then Jigar he defeated another senior star Sanjay Dutt which showed the rise of Ajay's stardom. 1994, he proceed with Super Hit in Dilwale and Hit in Vijaypath which took better opening than HAHK despite losing a clash. Suhaag was also success as well. 1997-1999 saw complete change in him with Ishq (Credit goes to both Ajay & Aamir), PTHHT & HDDCS. In between, he gave a critically accalimed Zakhm which earned him first National Award.
He's a superstar without a doubt with many successful films in Golmaal 3, Raajneeti, OUTIM, Singham, SOS, Bol Bachchan, Singham Returns, Golmaal Again, Raid, Total Dhamaal & DDPD. He gave his biggest Blockbuster and highest foofalls Tanhaji as well as HGOTY. It was also an ATBB in the Mumbai circuit to my knowledge.
His excellent line up will ensure him a much more longativity as a solo hero. Hope gives more Blockbusters, 2cr footfalls and he must give at least one or two 300cr this decade.
As an actor, he's the best of his generation and my favourite movie is TLOBS, Singham, Deewangee, Zakhm, Company, Gangaajal, OUTIM, Tanhaji and ect.
Hope for the best for Ajay and still love him.