There are negatives and positives to WOTR, Solasta and BG3. Peoples perspectives are going to vary based on personal preferences.
WOTR Pros - Party of 6. - 3.75 System More Verstility than 5E - Good/Evil Choices In general feel more relivent to the game itself. - Mounts - RTwp Option for those that want it. (Don't care myself) - Larger Equipment Options - Random Encounters
Cons - 3.75 System can be difficult on begginers / Lacks Balance of 5e. - Mythic Levels and extra add-ons can feel make you feel like your getting over powered. - Difficulty late game can feel very choice limiting at higher difficulty levels.
Solasta Pros - Character Creation Screen has far more initial options - Sticks to all the 5e rules. - Full party interaction. - Stat rolling option.
Cons - Limit of 7 classes from 5e. - Party doesnt really give you the individual feel of each character mattering as much it feels less story driven with lack of companions. - Not core with races.
BG3 Pros - Higher system graphics makes the game look more asthetic. - Combat does seem to be more fluid in current state. - Immersive dialogue options. - Target to Include all core options. - Multi-Player Feature.
Cons - Lack of ability to diversify the appearance of your character//Initial character design in general is super limiting. - Choices feel non-Impactful - A lot of homebrew rules. - No Random Encounter Options.
Im sure there are more things could go on there but those are the more stand out things.