I second all the recommendations to control agitation. I love Neopan 400, and have used ATM49 with it in the past. I settled on mostly using Adox ADX [their two part liquid developer] with it, but have also had good results with Ilford DD-X and I'm experimenting with HC-110 with it now.

As with others, I think Neopan 400 [and Acros] are probably by favourite films.