I see~ Do you play any of the 6th gen games? o:
I'll try to answer your questions to the best of my ability.
My favourite is Milotic because I really love it's design. Plus it has some really nice utility moves like Hyponsis, and Recover, alongside Attract and Toxic for disarray support. Usually I use mine with: Surf, Hidden Power [Electric], Recover, and Hypnosis as a result, which it takes care of itself, and provides sleep support for the rest of my team.
No, I'm not gender biased; it really makes no difference on what gender your pokemon are, really. For EV Training, I give it loads of HP Ups and Zincs for HP and Special Defense because it needs those the most, or at least, that's how I like to train one!
Um, sure, I like evolving it, the way it evolves is pretty interesting because you max out a Feebas's beauty, right? And as for my team, it pairs up nicely along side a Fire and Grass type pokemon, namely I use Pokemon like Venusaur and Heatran to cover weaknesses!