I have #2, and I really like it. I also like #1, and it sounds like that is what you like the best. Honestly, I don''t think you could go wrong with any of them.
How big are these pendants? It''s always hard to get an idea from a Tiffany picture! If they''re pretty small (I love delicate pendants), I''d personally want #1 or #3. If on the larger side, then #1.
Tacori- I will tell you that I have that bracelet from Tiffany''s and I LOVE IT!!!! I don''t know if you wanted a personal testimonial, but the cube bracelet you posted is one of my favorite pieces. However, I really like the first heart you posted too.
My friend has the bean one and it''s supercute, but not very formal. I feel like it might not be dressy enough to wear with those bridesmaid dresses...but if they are all wearing the same one that would make it look dressier. But for this purpose, I would give them the 2nd necklace! I really love it and think it is both formal enough to wear with the dress in the wedding, and informal enough for regular wear. If I were the receiver of the gift, I''m not sure which of those first 2 I would prefer, because they''re both so nice!