As you said, everyone has a different idea of what sounds good on an old MIJ set. I endorse Evans heads, so I recommend the G1s, but Evans has an abundance of choices. Go to their website and listen to sound samples. I experiment constantly with heads. I like tom heads that give me a warm, fat response, so Ambassadors and G1s generally don't work; they sound too sharp, but they work great on snare drums. Then again, just to prove that all drums are different, my '67 Ludwig toms sounded great with Ambassadors when I got them.
Lately, I've been liking Evans' UV-1 heads on toms. They're on my DW set and sound absolutely amazing. Try one of Evans' reso heads on the bottoms of your toms.
I would steer clear of Evans' Calftone heads. Let's just say that someone I know very well and trust implicitly, recommended I NOT try them! Some jazz guys think they sound like calf, but you can get that kind of sound with other choices that hold up better.
Experiment with heads until you find what works for YOU. What we like really doesn't matter in the long run. It's what you like that counts.