Back in 2007, I was 10 and didn't really use the Internet much. I had a fair amount of experience with Pokemon, having played Yellow, Sapphire, and FireRed on my brother's GBA, but I wasn't up to date with the latest news about any upcoming games. I don't think I even knew that Pokemon Emerald existed. One day, I stumbled across Serebii after Googling "Top 100 Pokemon" and, while scrolling down the list, saw some Pokemon I didn't recognise. One in particular that really caught my eye was called Empoleon. Its Water/Steel typing fascinated me; back then, the Steel type wasn't as notoriously powerful as it is now, but it was very rare. Seeing it on a Pokemon that I quickly discovered was the final evolution of a starter was intriguing, to say the least. At that point, DP had been out for a few months worldwide, but it wasn't until Christmas that year that I got a DS and a copy of Pokemon Diamond (choosing Piplup as my starter, of course).
Empoleon's been my favourite Pokemon ever since. My fondness for it has grown and matured as I have: when I was a kid it felt like this unstoppable force, with immense power and innumerable resistances, but as I've gotten older I've come to understand its flaws and appreciate it all the more for having them. In general, I like tanky Pokemon with clear strengths and shortcomings. Sweeping through teams with a Pokemon that has the power, coverage, and speed to mow down everything in front of it is much less interesting to me than developing a strategy (even a very basic one) to compensate for each team member's weaknesses.
Empoleon hasn't gotten a ton of attention or new toys in the generations since its debut, but it's always had enough going for it to have its moments. At the very least, it's never been strictly outclassed, as its dual typing is still unique to this day. Roost, Competitive, and Flip Turn are exciting developments for it in the competitive scene, but I was always going to find a way to make it work even if it never got any stronger. I made a point of including Empoleon on my BDSP Battle Tower team, conquering the Masters mode with my childhood favourite, and whenever Empoleon is available in any fangame I will always use it.
It's also what kicked off my love for the Steel type in general :)