most of the stuff that you heard is wrong.........
1. you wouldnt ever need your teeth for any Bandai model kit
2. the junctions are tight, dont worry
3. each pg has its own style, there's no so called PG2.0 or what so ever
4. RX78 focus on displaying the complexity and reality of mechanic frame, that's why it looks more detailed
5. Strike focus on superior movability and divided armor
Both are masterpiece of model kits, my advice? get them both. If you have to choose, pick strike