I like C&C trilobal polyester but it's a bit hard to find. I use a lot of Robison/Anton with good results. I LOVE LOVE LOVE Floriani 40wt poly. I order Floriani from Red Rock Threads.
For bobbin thread I prefer to use prewound bobbins, but if I can't get them then I buy a spool of bobbin thread or if push comes to shove I will use Maxi Lock serger thread.
Hope this helps!