I think since I belong to the 2010s era I would have a greater resemblence to what current fans of my age would think.
For me I grew up watching the likes of Tendulkar, Ponting and Kallis well into their decline. Ponting was probably the worst amongst the 4 players I mentioned since the time I started watching Test Cricket. You could argue that Tendulkar was played for more time than he could've but let me tell you that he had lot of scores in excess of 50s post 2011 World Cup and all those went unnoticed because players like Pujara, Kohli & Dhoni were doing better. Talking about Kallis I still wonder that he had more years of Cricket left in him but he left a little too early. I would say that Kumar Sangakkara also had atleast 3-4 years of Cricket left with him.
Amongst the bowlers I think there were hardly ones from the 2000s left. I believe I grew up watching the weakest bowling line-ups in Cricket. There were only 3-4 genuine bowlers namely James Anderson, Stuart Broad, Dale Steyn & Vernon Philander. Morne Morkel, Mitchell Johnson, Mitchell Starc they were all inconsistent. Trent Boult, Josh Hazelwood & Kagiso Rabada had hardly started their careers. If there is one bowler who had that fire to keep improving it was Dale Steyn. In my initial years of following Cricket he was one bowler who wouldn't compromise on his pace and yet he bowled such tighter spells. Whenever India played South Africa I was always worried about the Steyn factor. He was that good.
I think the greatest ever bowling performance was Mitchell Johnson's 2013-14 Ashes series. I really enjoyed watching him bowl throughout that series.
The greatest Captain that I've followed is Dhoni in white ball Cricket and Michael Clarke in red-ball Cricket. I felt Clarke lead one of those Australian teams that was in transition and he was the only genuinely good batsman in their team. From what I followed in 2013 Ashes in England, Michael Clarke and Brad Haddin were only reliable batsmen they had while others were walking wickets or sitting ducks. Pattinson and Siddle were the only good bowlers they had while Lyon was good in his own way. The best spin bowler that I followed from the yesteryears was Graeme Swann. Things were that bad for spinners around the world.
I saw these players on top of their game in my initial years- Michael Clarke, Alastair Cook, AB de Villiers, Hashim Amla, Kumar Sangakkara, Mahela Jayawardene, MS Dhoni, Jonathan Trott, Kevin Pietersen, Brendon McCullum, Ross Taylor (he wasn't that good earlier), Ian Bell, Shakib Al Hasan, Dale Steyn, Morne Morkel, Vernon Philander, James Pattinson, Peter Siddle, Graeme Swann, Brad Haddin, James Anderson, Stuart Broad, Younis Khan, Mitchell Johnson, Tim Southee, Saeed Ajmal(who was later banned from bowling) & Junaid Khan. I may have still missed many names in there.
Growing up I watched these players reach greater heights- Virat Kohli, Rohit Sharma, Shikhar Dhawan, Faf du Plessis, Quinton de Kock, Kane Williamson, Cheteshwar Pujara, Ajinkya Rahane, Ravindra Jadeja, Sunil Narine, Ravichandran Ashwin, Steve Smith, Trent Boult, Kieron Pollard, Nicholas Pooran, Evin Lewis, Jason Holder, Murali Vijay, Joe Root, Yasir Shah, Nathan Lyon, Mitchell Starc, Josh Hazelwood, Aaron Finch, etc.
I also watched future stars like Yuzvendra Chahal, Jasprit Bumrah, Aiden Markram, Babar Azam, etc
I believe over the years Australia was the strongest side I followed then it was South Africa, India and England. Ever so declining sides are Pakistan, Sri Lanka, West Indies & Zimbabwe. Bangladesh is improving at a stagnant rate while Ireland and Afghanistan are quickly improving. Right now I think India and England are at par while Australia still have a work to do to get to their best. New Zealand has arguably their greatest ever side.
Now if you ask me historically which has been the strongest side I would definitely say it was West Indies in 80s, Pakistan in 90s, Australia in 2000s, South Africa in late 2000s and early 2010s while 2010s clearly belongs to India. Now it is actually a tough fight out between India, England and Australia but if we look at the bench strengths at present India may well dominate 2020s and England might decline in late 2020s but let us not write off Australia.