The preference for sending an email or leaving a voicemail depends on several factors, including the urgency and sensitivity of the matter, the recipient's communication style, and personal preference. Here's a comparison:

Email:

1. Convenience: Email allows you to send and receive messages at any time, regardless of the recipient's availability.

2. Written record: Emails provide a written record of the conversation, which can be useful for reference or future follow-ups.

3. Ability to attach files: Emails allow you to attach files, images, or documents, which can be beneficial for sharing relevant information.

4. Time to compose: Composing an email may take longer compared to leaving a voice message, especially if it requires detailed information.

5. Lack of personal touch: Emails can sometimes be perceived as impersonal or less intimate, particularly when conveying emotional messages.

Voicemail:

1. Immediacy: Leaving a voice message can provide a sense of immediacy, allowing you to communicate with the recipient promptly.

2. Verbal tone: Voicemails allow you to convey tone, intonation, and emotions, which can add a personal touch and foster a stronger emotional connection.

3. Ease of use: Voicemail messages are usually straightforward to record and send, without requiring typing or formatting.

4. May require call back: The recipient may need to return your call to respond, which might not always be convenient or suitable.

5. Difficulty in multitasking: Unlike emails, voicemails require the recipient's full attention to hear and understand the message.

Considering the context of expressing love;

* Urgency: If the matter is time-sensitive or requires prompt attention, a phone call may be more suitable.

* Sensitivity: If you're expressing deep feelings or sensitive information, a voice message can allow you to convey emotions and sincerity more effectively.

* Recipient's preferences: Think about the recipient's preferred communication style. Some individuals might prefer listening to voice messages, while others may find it easier to read and respond to emails.

Ultimately, the decision between sending an email or leaving a voicemail depends on the specific situation and your aim of expressing love. If you want to convey strong emotions and establish a personal connection, a voice message might be a better choice. If you prefer a convenient and documented form of communication, email could be a suitable option.